Sophie

Sophie

distrib > Fedora > 16 > x86_64 > media > updates-src > by-pkgid > 3e95c6152aeefc9336534d62f3b99336 > files > 5

python-paste-script-1.7.5-4.fc16.src.rpm

diff -uNr PasteScript-1.7.4.2.pristine/paste/script/util/_subprocess24.py PasteScript-1.7.3/paste/script/util/_subprocess24.py
--- PasteScript-1.7.4.2.pristine/paste/script/util/_subprocess24.py	1969-12-31 19:00:00.000000000 -0500
+++ PasteScript-1.7.4.2/paste/script/util/_subprocess24.py	2010-07-02 18:34:43.095506590 -0400
@@ -0,0 +1,1154 @@
+# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
+# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
+# subprocess - Subprocesses with accessible I/O streams
+#
+# For more information about this module, see PEP 324.
+#
+# This module should remain compatible with Python 2.2, see PEP 291.
+#
+# Copyright (c) 2003-2005 by Peter Astrand <astrand@lysator.liu.se>
+#
+# Licensed to PSF under a Contributor Agreement.
+# See http://www.python.org/2.4/license for licensing details.
+
+r"""subprocess - Subprocesses with accessible I/O streams
+
+This module allows you to spawn processes, connect to their
+input/output/error pipes, and obtain their return codes.  This module
+intends to replace several other, older modules and functions, like:
+
+os.system
+os.spawn*
+os.popen*
+popen2.*
+commands.*
+
+Information about how the subprocess module can be used to replace these
+modules and functions can be found below.
+
+
+
+Using the subprocess module
+===========================
+This module defines one class called Popen:
+
+class Popen(args, bufsize=0, executable=None,
+            stdin=None, stdout=None, stderr=None,
+            preexec_fn=None, close_fds=False, shell=False,
+            cwd=None, env=None, universal_newlines=False,
+            startupinfo=None, creationflags=0):
+
+
+Arguments are:
+
+args should be a string, or a sequence of program arguments.  The
+program to execute is normally the first item in the args sequence or
+string, but can be explicitly set by using the executable argument.
+
+On UNIX, with shell=False (default): In this case, the Popen class
+uses os.execvp() to execute the child program.  args should normally
+be a sequence.  A string will be treated as a sequence with the string
+as the only item (the program to execute).
+
+On UNIX, with shell=True: If args is a string, it specifies the
+command string to execute through the shell.  If args is a sequence,
+the first item specifies the command string, and any additional items
+will be treated as additional shell arguments.
+
+On Windows: the Popen class uses CreateProcess() to execute the child
+program, which operates on strings.  If args is a sequence, it will be
+converted to a string using the list2cmdline method.  Please note that
+not all MS Windows applications interpret the command line the same
+way: The list2cmdline is designed for applications using the same
+rules as the MS C runtime.
+
+bufsize, if given, has the same meaning as the corresponding argument
+to the built-in open() function: 0 means unbuffered, 1 means line
+buffered, any other positive value means use a buffer of
+(approximately) that size.  A negative bufsize means to use the system
+default, which usually means fully buffered.  The default value for
+bufsize is 0 (unbuffered).
+
+stdin, stdout and stderr specify the executed programs' standard
+input, standard output and standard error file handles, respectively.
+Valid values are PIPE, an existing file descriptor (a positive
+integer), an existing file object, and None.  PIPE indicates that a
+new pipe to the child should be created.  With None, no redirection
+will occur; the child's file handles will be inherited from the
+parent.  Additionally, stderr can be STDOUT, which indicates that the
+stderr data from the applications should be captured into the same
+file handle as for stdout.
+
+If preexec_fn is set to a callable object, this object will be called
+in the child process just before the child is executed.
+
+If close_fds is true, all file descriptors except 0, 1 and 2 will be
+closed before the child process is executed.
+
+if shell is true, the specified command will be executed through the
+shell.
+
+If cwd is not None, the current directory will be changed to cwd
+before the child is executed.
+
+If env is not None, it defines the environment variables for the new
+process.
+
+If universal_newlines is true, the file objects stdout and stderr are
+opened as a text files, but lines may be terminated by any of '\n',
+the Unix end-of-line convention, '\r', the Macintosh convention or
+'\r\n', the Windows convention.  All of these external representations
+are seen as '\n' by the Python program.  Note: This feature is only
+available if Python is built with universal newline support (the
+default).  Also, the newlines attribute of the file objects stdout,
+stdin and stderr are not updated by the communicate() method.
+
+The startupinfo and creationflags, if given, will be passed to the
+underlying CreateProcess() function.  They can specify things such as
+appearance of the main window and priority for the new process.
+(Windows only)
+
+
+This module also defines two shortcut functions:
+
+call(*args, **kwargs):
+    Run command with arguments.  Wait for command to complete, then
+    return the returncode attribute.
+
+    The arguments are the same as for the Popen constructor.  Example:
+
+    retcode = call(["ls", "-l"])
+
+
+Exceptions
+----------
+Exceptions raised in the child process, before the new program has
+started to execute, will be re-raised in the parent.  Additionally,
+the exception object will have one extra attribute called
+'child_traceback', which is a string containing traceback information
+from the childs point of view.
+
+The most common exception raised is OSError.  This occurs, for
+example, when trying to execute a non-existent file.  Applications
+should prepare for OSErrors.
+
+A ValueError will be raised if Popen is called with invalid arguments.
+
+
+Security
+--------
+Unlike some other popen functions, this implementation will never call
+/bin/sh implicitly.  This means that all characters, including shell
+metacharacters, can safely be passed to child processes.
+
+
+Popen objects
+=============
+Instances of the Popen class have the following methods:
+
+poll()
+    Check if child process has terminated.  Returns returncode
+    attribute.
+
+wait()
+    Wait for child process to terminate.  Returns returncode attribute.
+
+communicate(input=None)
+    Interact with process: Send data to stdin.  Read data from stdout
+    and stderr, until end-of-file is reached.  Wait for process to
+    terminate.  The optional stdin argument should be a string to be
+    sent to the child process, or None, if no data should be sent to
+    the child.
+
+    communicate() returns a tuple (stdout, stderr).
+
+    Note: The data read is buffered in memory, so do not use this
+    method if the data size is large or unlimited.
+
+The following attributes are also available:
+
+stdin
+    If the stdin argument is PIPE, this attribute is a file object
+    that provides input to the child process.  Otherwise, it is None.
+
+stdout
+    If the stdout argument is PIPE, this attribute is a file object
+    that provides output from the child process.  Otherwise, it is
+    None.
+
+stderr
+    If the stderr argument is PIPE, this attribute is file object that
+    provides error output from the child process.  Otherwise, it is
+    None.
+
+pid
+    The process ID of the child process.
+
+returncode
+    The child return code.  A None value indicates that the process
+    hasn't terminated yet.  A negative value -N indicates that the
+    child was terminated by signal N (UNIX only).
+
+
+Replacing older functions with the subprocess module
+====================================================
+In this section, "a ==> b" means that b can be used as a replacement
+for a.
+
+Note: All functions in this section fail (more or less) silently if
+the executed program cannot be found; this module raises an OSError
+exception.
+
+In the following examples, we assume that the subprocess module is
+imported with "from subprocess import *".
+
+
+Replacing /bin/sh shell backquote
+---------------------------------
+output=`mycmd myarg`
+==>
+output = Popen(["mycmd", "myarg"], stdout=PIPE).communicate()[0]
+
+
+Replacing shell pipe line
+-------------------------
+output=`dmesg | grep hda`
+==>
+p1 = Popen(["dmesg"], stdout=PIPE)
+p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE)
+output = p2.communicate()[0]
+
+
+Replacing os.system()
+---------------------
+sts = os.system("mycmd" + " myarg")
+==>
+p = Popen("mycmd" + " myarg", shell=True)
+sts = os.waitpid(p.pid, 0)
+
+Note:
+
+* Calling the program through the shell is usually not required.
+
+* It's easier to look at the returncode attribute than the
+  exitstatus.
+
+A more real-world example would look like this:
+
+try:
+    retcode = call("mycmd" + " myarg", shell=True)
+    if retcode < 0:
+        print >>sys.stderr, "Child was terminated by signal", -retcode
+    else:
+        print >>sys.stderr, "Child returned", retcode
+except OSError, e:
+    print >>sys.stderr, "Execution failed:", e
+
+
+Replacing os.spawn*
+-------------------
+P_NOWAIT example:
+
+pid = os.spawnlp(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg")
+==>
+pid = Popen(["/bin/mycmd", "myarg"]).pid
+
+
+P_WAIT example:
+
+retcode = os.spawnlp(os.P_WAIT, "/bin/mycmd", "mycmd", "myarg")
+==>
+retcode = call(["/bin/mycmd", "myarg"])
+
+
+Vector example:
+
+os.spawnvp(os.P_NOWAIT, path, args)
+==>
+Popen([path] + args[1:])
+
+
+Environment example:
+
+os.spawnlpe(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg", env)
+==>
+Popen(["/bin/mycmd", "myarg"], env={"PATH": "/usr/bin"})
+
+
+Replacing os.popen*
+-------------------
+pipe = os.popen(cmd, mode='r', bufsize)
+==>
+pipe = Popen(cmd, shell=True, bufsize=bufsize, stdout=PIPE).stdout
+
+pipe = os.popen(cmd, mode='w', bufsize)
+==>
+pipe = Popen(cmd, shell=True, bufsize=bufsize, stdin=PIPE).stdin
+
+
+(child_stdin, child_stdout) = os.popen2(cmd, mode, bufsize)
+==>
+p = Popen(cmd, shell=True, bufsize=bufsize,
+          stdin=PIPE, stdout=PIPE, close_fds=True)
+(child_stdin, child_stdout) = (p.stdin, p.stdout)
+
+
+(child_stdin,
+ child_stdout,
+ child_stderr) = os.popen3(cmd, mode, bufsize)
+==>
+p = Popen(cmd, shell=True, bufsize=bufsize,
+          stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True)
+(child_stdin,
+ child_stdout,
+ child_stderr) = (p.stdin, p.stdout, p.stderr)
+
+
+(child_stdin, child_stdout_and_stderr) = os.popen4(cmd, mode, bufsize)
+==>
+p = Popen(cmd, shell=True, bufsize=bufsize,
+          stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
+(child_stdin, child_stdout_and_stderr) = (p.stdin, p.stdout)
+
+
+Replacing popen2.*
+------------------
+Note: If the cmd argument to popen2 functions is a string, the command
+is executed through /bin/sh.  If it is a list, the command is directly
+executed.
+
+(child_stdout, child_stdin) = popen2.popen2("somestring", bufsize, mode)
+==>
+p = Popen(["somestring"], shell=True, bufsize=bufsize
+          stdin=PIPE, stdout=PIPE, close_fds=True)
+(child_stdout, child_stdin) = (p.stdout, p.stdin)
+
+
+(child_stdout, child_stdin) = popen2.popen2(["mycmd", "myarg"], bufsize, mode)
+==>
+p = Popen(["mycmd", "myarg"], bufsize=bufsize,
+          stdin=PIPE, stdout=PIPE, close_fds=True)
+(child_stdout, child_stdin) = (p.stdout, p.stdin)
+
+The popen2.Popen3 and popen3.Popen4 basically works as subprocess.Popen,
+except that:
+
+* subprocess.Popen raises an exception if the execution fails
+* the capturestderr argument is replaced with the stderr argument.
+* stdin=PIPE and stdout=PIPE must be specified.
+* popen2 closes all filedescriptors by default, but you have to specify
+  close_fds=True with subprocess.Popen.
+
+
+"""
+
+import sys
+mswindows = (sys.platform == "win32")
+
+import os
+import types
+import traceback
+
+if mswindows:
+    import threading
+    import msvcrt
+    if 0: # <-- change this to use pywin32 instead of the _subprocess driver
+        import pywintypes
+        from win32api import GetStdHandle, STD_INPUT_HANDLE, \
+                             STD_OUTPUT_HANDLE, STD_ERROR_HANDLE
+        from win32api import GetCurrentProcess, DuplicateHandle, \
+                             GetModuleFileName, GetVersion
+        from win32con import DUPLICATE_SAME_ACCESS, SW_HIDE
+        from win32pipe import CreatePipe
+        from win32process import CreateProcess, STARTUPINFO, \
+                                 GetExitCodeProcess, STARTF_USESTDHANDLES, \
+                                 STARTF_USESHOWWINDOW, CREATE_NEW_CONSOLE
+        from win32event import WaitForSingleObject, INFINITE, WAIT_OBJECT_0
+    else:
+        raise ImportError(
+            "Windows subprocess module must be installed: see "
+            "http://effbot.org/downloads/#subprocess")
+        from _subprocess import *
+        class STARTUPINFO:
+            dwFlags = 0
+            hStdInput = None
+            hStdOutput = None
+            hStdError = None
+        class pywintypes:
+            error = IOError
+else:
+    import select
+    import errno
+    import fcntl
+    import pickle
+
+__all__ = ["Popen", "PIPE", "STDOUT", "call"]
+
+try:
+    MAXFD = os.sysconf("SC_OPEN_MAX")
+except:
+    MAXFD = 256
+
+# True/False does not exist on 2.2.0
+try:
+    False
+except NameError:
+    False = 0
+    True = 1
+
+_active = []
+
+def _cleanup():
+    for inst in _active[:]:
+        inst.poll()
+
+PIPE = -1
+STDOUT = -2
+
+
+def call(*args, **kwargs):
+    """Run command with arguments.  Wait for command to complete, then
+    return the returncode attribute.
+
+    The arguments are the same as for the Popen constructor.  Example:
+
+    retcode = call(["ls", "-l"])
+    """
+    return Popen(*args, **kwargs).wait()
+
+
+def list2cmdline(seq):
+    """
+    Translate a sequence of arguments into a command line
+    string, using the same rules as the MS C runtime:
+
+    1) Arguments are delimited by white space, which is either a
+       space or a tab.
+
+    2) A string surrounded by double quotation marks is
+       interpreted as a single argument, regardless of white space
+       contained within.  A quoted string can be embedded in an
+       argument.
+
+    3) A double quotation mark preceded by a backslash is
+       interpreted as a literal double quotation mark.
+
+    4) Backslashes are interpreted literally, unless they
+       immediately precede a double quotation mark.
+
+    5) If backslashes immediately precede a double quotation mark,
+       every pair of backslashes is interpreted as a literal
+       backslash.  If the number of backslashes is odd, the last
+       backslash escapes the next double quotation mark as
+       described in rule 3.
+    """
+
+    # See
+    # http://msdn.microsoft.com/library/en-us/vccelng/htm/progs_12.asp
+    result = []
+    needquote = False
+    for arg in seq:
+        bs_buf = []
+
+        # Add a space to separate this argument from the others
+        if result:
+            result.append(' ')
+
+        needquote = (" " in arg) or ("\t" in arg)
+        if needquote:
+            result.append('"')
+
+        for c in arg:
+            if c == '\\':
+                # Don't know if we need to double yet.
+                bs_buf.append(c)
+            elif c == '"':
+                # Double backspaces.
+                result.append('\\' * len(bs_buf)*2)
+                bs_buf = []
+                result.append('\\"')
+            else:
+                # Normal char
+                if bs_buf:
+                    result.extend(bs_buf)
+                    bs_buf = []
+                result.append(c)
+
+        # Add remaining backspaces, if any.
+        if bs_buf:
+            result.extend(bs_buf)
+
+        if needquote:
+            result.extend(bs_buf)
+            result.append('"')
+
+    return ''.join(result)
+
+
+class Popen(object):
+    def __init__(self, args, bufsize=0, executable=None,
+                 stdin=None, stdout=None, stderr=None,
+                 preexec_fn=None, close_fds=False, shell=False,
+                 cwd=None, env=None, universal_newlines=False,
+                 startupinfo=None, creationflags=0):
+        """Create new Popen instance."""
+        _cleanup()
+
+        if not isinstance(bufsize, (int, long)):
+            raise TypeError("bufsize must be an integer")
+
+        if mswindows:
+            if preexec_fn is not None:
+                raise ValueError("preexec_fn is not supported on Windows "
+                                 "platforms")
+            if close_fds:
+                raise ValueError("close_fds is not supported on Windows "
+                                 "platforms")
+        else:
+            # POSIX
+            if startupinfo is not None:
+                raise ValueError("startupinfo is only supported on Windows "
+                                 "platforms")
+            if creationflags != 0:
+                raise ValueError("creationflags is only supported on Windows "
+                                 "platforms")
+
+        self.stdin = None
+        self.stdout = None
+        self.stderr = None
+        self.pid = None
+        self.returncode = None
+        self.universal_newlines = universal_newlines
+
+        # Input and output objects. The general principle is like
+        # this:
+        #
+        # Parent                   Child
+        # ------                   -----
+        # p2cwrite   ---stdin--->  p2cread
+        # c2pread    <--stdout---  c2pwrite
+        # errread    <--stderr---  errwrite
+        #
+        # On POSIX, the child objects are file descriptors.  On
+        # Windows, these are Windows file handles.  The parent objects
+        # are file descriptors on both platforms.  The parent objects
+        # are None when not using PIPEs. The child objects are None
+        # when not redirecting.
+
+        (p2cread, p2cwrite,
+         c2pread, c2pwrite,
+         errread, errwrite) = self._get_handles(stdin, stdout, stderr)
+
+        self._execute_child(args, executable, preexec_fn, close_fds,
+                            cwd, env, universal_newlines,
+                            startupinfo, creationflags, shell,
+                            p2cread, p2cwrite,
+                            c2pread, c2pwrite,
+                            errread, errwrite)
+
+        if p2cwrite:
+            self.stdin = os.fdopen(p2cwrite, 'wb', bufsize)
+        if c2pread:
+            if universal_newlines:
+                self.stdout = os.fdopen(c2pread, 'rU', bufsize)
+            else:
+                self.stdout = os.fdopen(c2pread, 'rb', bufsize)
+        if errread:
+            if universal_newlines:
+                self.stderr = os.fdopen(errread, 'rU', bufsize)
+            else:
+                self.stderr = os.fdopen(errread, 'rb', bufsize)
+
+        _active.append(self)
+
+
+    def _translate_newlines(self, data):
+        data = data.replace("\r\n", "\n")
+        data = data.replace("\r", "\n")
+        return data
+
+
+    if mswindows:
+        #
+        # Windows methods
+        #
+        def _get_handles(self, stdin, stdout, stderr):
+            """Construct and return tupel with IO objects:
+            p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
+            """
+            if stdin == None and stdout == None and stderr == None:
+                return (None, None, None, None, None, None)
+
+            p2cread, p2cwrite = None, None
+            c2pread, c2pwrite = None, None
+            errread, errwrite = None, None
+
+            if stdin == None:
+                p2cread = GetStdHandle(STD_INPUT_HANDLE)
+            elif stdin == PIPE:
+                p2cread, p2cwrite = CreatePipe(None, 0)
+                # Detach and turn into fd
+                p2cwrite = p2cwrite.Detach()
+                p2cwrite = msvcrt.open_osfhandle(p2cwrite, 0)
+            elif type(stdin) == types.IntType:
+                p2cread = msvcrt.get_osfhandle(stdin)
+            else:
+                # Assuming file-like object
+                p2cread = msvcrt.get_osfhandle(stdin.fileno())
+            p2cread = self._make_inheritable(p2cread)
+
+            if stdout == None:
+                c2pwrite = GetStdHandle(STD_OUTPUT_HANDLE)
+            elif stdout == PIPE:
+                c2pread, c2pwrite = CreatePipe(None, 0)
+                # Detach and turn into fd
+                c2pread = c2pread.Detach()
+                c2pread = msvcrt.open_osfhandle(c2pread, 0)
+            elif type(stdout) == types.IntType:
+                c2pwrite = msvcrt.get_osfhandle(stdout)
+            else:
+                # Assuming file-like object
+                c2pwrite = msvcrt.get_osfhandle(stdout.fileno())
+            c2pwrite = self._make_inheritable(c2pwrite)
+
+            if stderr == None:
+                errwrite = GetStdHandle(STD_ERROR_HANDLE)
+            elif stderr == PIPE:
+                errread, errwrite = CreatePipe(None, 0)
+                # Detach and turn into fd
+                errread = errread.Detach()
+                errread = msvcrt.open_osfhandle(errread, 0)
+            elif stderr == STDOUT:
+                errwrite = c2pwrite
+            elif type(stderr) == types.IntType:
+                errwrite = msvcrt.get_osfhandle(stderr)
+            else:
+                # Assuming file-like object
+                errwrite = msvcrt.get_osfhandle(stderr.fileno())
+            errwrite = self._make_inheritable(errwrite)
+
+            return (p2cread, p2cwrite,
+                    c2pread, c2pwrite,
+                    errread, errwrite)
+
+
+        def _make_inheritable(self, handle):
+            """Return a duplicate of handle, which is inheritable"""
+            return DuplicateHandle(GetCurrentProcess(), handle,
+                                   GetCurrentProcess(), 0, 1,
+                                   DUPLICATE_SAME_ACCESS)
+
+
+        def _find_w9xpopen(self):
+            """Find and return absolut path to w9xpopen.exe"""
+            w9xpopen = os.path.join(os.path.dirname(GetModuleFileName(0)),
+                                    "w9xpopen.exe")
+            if not os.path.exists(w9xpopen):
+                # Eeek - file-not-found - possibly an embedding
+                # situation - see if we can locate it in sys.exec_prefix
+                w9xpopen = os.path.join(os.path.dirname(sys.exec_prefix),
+                                        "w9xpopen.exe")
+                if not os.path.exists(w9xpopen):
+                    raise RuntimeError("Cannot locate w9xpopen.exe, which is "
+                                       "needed for Popen to work with your "
+                                       "shell or platform.")
+            return w9xpopen
+
+
+        def _execute_child(self, args, executable, preexec_fn, close_fds,
+                           cwd, env, universal_newlines,
+                           startupinfo, creationflags, shell,
+                           p2cread, p2cwrite,
+                           c2pread, c2pwrite,
+                           errread, errwrite):
+            """Execute program (MS Windows version)"""
+
+            if not isinstance(args, types.StringTypes):
+                args = list2cmdline(args)
+
+            # Process startup details
+            default_startupinfo = STARTUPINFO()
+            if startupinfo == None:
+                startupinfo = default_startupinfo
+            if not None in (p2cread, c2pwrite, errwrite):
+                startupinfo.dwFlags |= STARTF_USESTDHANDLES
+                startupinfo.hStdInput = p2cread
+                startupinfo.hStdOutput = c2pwrite
+                startupinfo.hStdError = errwrite
+
+            if shell:
+                default_startupinfo.dwFlags |= STARTF_USESHOWWINDOW
+                default_startupinfo.wShowWindow = SW_HIDE
+                comspec = os.environ.get("COMSPEC", "cmd.exe")
+                args = comspec + " /c " + args
+                if (GetVersion() >= 0x80000000L or
+                        os.path.basename(comspec).lower() == "command.com"):
+                    # Win9x, or using command.com on NT. We need to
+                    # use the w9xpopen intermediate program. For more
+                    # information, see KB Q150956
+                    # (http://web.archive.org/web/20011105084002/http://support.microsoft.com/support/kb/articles/Q150/9/56.asp)
+                    w9xpopen = self._find_w9xpopen()
+                    args = '"%s" %s' % (w9xpopen, args)
+                    # Not passing CREATE_NEW_CONSOLE has been known to
+                    # cause random failures on win9x.  Specifically a
+                    # dialog: "Your program accessed mem currently in
+                    # use at xxx" and a hopeful warning about the
+                    # stability of your system.  Cost is Ctrl+C wont
+                    # kill children.
+                    creationflags |= CREATE_NEW_CONSOLE
+
+            # Start the process
+            try:
+                hp, ht, pid, tid = CreateProcess(executable, args,
+                                         # no special security
+                                         None, None,
+                                         # must inherit handles to pass std
+                                         # handles
+                                         1,
+                                         creationflags,
+                                         env,
+                                         cwd,
+                                         startupinfo)
+            except pywintypes.error, e:
+                # Translate pywintypes.error to WindowsError, which is
+                # a subclass of OSError.  FIXME: We should really
+                # translate errno using _sys_errlist (or simliar), but
+                # how can this be done from Python?
+                raise WindowsError(*e.args)
+
+            # Retain the process handle, but close the thread handle
+            self._handle = hp
+            self.pid = pid
+            ht.Close()
+
+            # Child is launched. Close the parent's copy of those pipe
+            # handles that only the child should have open.  You need
+            # to make sure that no handles to the write end of the
+            # output pipe are maintained in this process or else the
+            # pipe will not close when the child process exits and the
+            # ReadFile will hang.
+            if p2cread != None:
+                p2cread.Close()
+            if c2pwrite != None:
+                c2pwrite.Close()
+            if errwrite != None:
+                errwrite.Close()
+
+
+        def poll(self):
+            """Check if child process has terminated.  Returns returncode
+            attribute."""
+            if self.returncode == None:
+                if WaitForSingleObject(self._handle, 0) == WAIT_OBJECT_0:
+                    self.returncode = GetExitCodeProcess(self._handle)
+                    _active.remove(self)
+            return self.returncode
+
+
+        def wait(self):
+            """Wait for child process to terminate.  Returns returncode
+            attribute."""
+            if self.returncode == None:
+                obj = WaitForSingleObject(self._handle, INFINITE)
+                self.returncode = GetExitCodeProcess(self._handle)
+                _active.remove(self)
+            return self.returncode
+
+
+        def _readerthread(self, fh, buffer):
+            buffer.append(fh.read())
+
+
+        def communicate(self, input=None):
+            """Interact with process: Send data to stdin.  Read data from
+            stdout and stderr, until end-of-file is reached.  Wait for
+            process to terminate.  The optional input argument should be a
+            string to be sent to the child process, or None, if no data
+            should be sent to the child.
+
+            communicate() returns a tuple (stdout, stderr)."""
+            stdout = None # Return
+            stderr = None # Return
+
+            if self.stdout:
+                stdout = []
+                stdout_thread = threading.Thread(target=self._readerthread,
+                                                 args=(self.stdout, stdout))
+                stdout_thread.setDaemon(True)
+                stdout_thread.start()
+            if self.stderr:
+                stderr = []
+                stderr_thread = threading.Thread(target=self._readerthread,
+                                                 args=(self.stderr, stderr))
+                stderr_thread.setDaemon(True)
+                stderr_thread.start()
+
+            if self.stdin:
+                if input != None:
+                    self.stdin.write(input)
+                self.stdin.close()
+
+            if self.stdout:
+                stdout_thread.join()
+            if self.stderr:
+                stderr_thread.join()
+
+            # All data exchanged.  Translate lists into strings.
+            if stdout != None:
+                stdout = stdout[0]
+            if stderr != None:
+                stderr = stderr[0]
+
+            # Translate newlines, if requested.  We cannot let the file
+            # object do the translation: It is based on stdio, which is
+            # impossible to combine with select (unless forcing no
+            # buffering).
+            if self.universal_newlines and hasattr(open, 'newlines'):
+                if stdout:
+                    stdout = self._translate_newlines(stdout)
+                if stderr:
+                    stderr = self._translate_newlines(stderr)
+
+            self.wait()
+            return (stdout, stderr)
+
+    else:
+        #
+        # POSIX methods
+        #
+        def _get_handles(self, stdin, stdout, stderr):
+            """Construct and return tupel with IO objects:
+            p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
+            """
+            p2cread, p2cwrite = None, None
+            c2pread, c2pwrite = None, None
+            errread, errwrite = None, None
+
+            if stdin == None:
+                pass
+            elif stdin == PIPE:
+                p2cread, p2cwrite = os.pipe()
+            elif type(stdin) == types.IntType:
+                p2cread = stdin
+            else:
+                # Assuming file-like object
+                p2cread = stdin.fileno()
+
+            if stdout == None:
+                pass
+            elif stdout == PIPE:
+                c2pread, c2pwrite = os.pipe()
+            elif type(stdout) == types.IntType:
+                c2pwrite = stdout
+            else:
+                # Assuming file-like object
+                c2pwrite = stdout.fileno()
+
+            if stderr == None:
+                pass
+            elif stderr == PIPE:
+                errread, errwrite = os.pipe()
+            elif stderr == STDOUT:
+                errwrite = c2pwrite
+            elif type(stderr) == types.IntType:
+                errwrite = stderr
+            else:
+                # Assuming file-like object
+                errwrite = stderr.fileno()
+
+            return (p2cread, p2cwrite,
+                    c2pread, c2pwrite,
+                    errread, errwrite)
+
+
+        def _set_cloexec_flag(self, fd):
+            try:
+                cloexec_flag = fcntl.FD_CLOEXEC
+            except AttributeError:
+                cloexec_flag = 1
+
+            old = fcntl.fcntl(fd, fcntl.F_GETFD)
+            fcntl.fcntl(fd, fcntl.F_SETFD, old | cloexec_flag)
+
+
+        def _close_fds(self, but):
+            for i in range(3, MAXFD):
+                if i == but:
+                    continue
+                try:
+                    os.close(i)
+                except:
+                    pass
+
+
+        def _execute_child(self, args, executable, preexec_fn, close_fds,
+                           cwd, env, universal_newlines,
+                           startupinfo, creationflags, shell,
+                           p2cread, p2cwrite,
+                           c2pread, c2pwrite,
+                           errread, errwrite):
+            """Execute program (POSIX version)"""
+
+            if isinstance(args, types.StringTypes):
+                args = [args]
+
+            if shell:
+                args = ["/bin/sh", "-c"] + args
+
+            if executable == None:
+                executable = args[0]
+
+            # For transferring possible exec failure from child to parent
+            # The first char specifies the exception type: 0 means
+            # OSError, 1 means some other error.
+            errpipe_read, errpipe_write = os.pipe()
+            self._set_cloexec_flag(errpipe_write)
+
+            self.pid = os.fork()
+            if self.pid == 0:
+                # Child
+                try:
+                    # Close parent's pipe ends
+                    if p2cwrite:
+                        os.close(p2cwrite)
+                    if c2pread:
+                        os.close(c2pread)
+                    if errread:
+                        os.close(errread)
+                    os.close(errpipe_read)
+
+                    # Dup fds for child
+                    if p2cread:
+                        os.dup2(p2cread, 0)
+                    if c2pwrite:
+                        os.dup2(c2pwrite, 1)
+                    if errwrite:
+                        os.dup2(errwrite, 2)
+
+                    # Close pipe fds.  Make sure we doesn't close the same
+                    # fd more than once.
+                    if p2cread:
+                        os.close(p2cread)
+                    if c2pwrite and c2pwrite not in (p2cread,):
+                        os.close(c2pwrite)
+                    if errwrite and errwrite not in (p2cread, c2pwrite):
+                        os.close(errwrite)
+
+                    # Close all other fds, if asked for
+                    if close_fds:
+                        self._close_fds(but=errpipe_write)
+
+                    if cwd != None:
+                        os.chdir(cwd)
+
+                    if preexec_fn:
+                        apply(preexec_fn)
+
+                    if env == None:
+                        os.execvp(executable, args)
+                    else:
+                        os.execvpe(executable, args, env)
+
+                except:
+                    exc_type, exc_value, tb = sys.exc_info()
+                    # Save the traceback and attach it to the exception object
+                    exc_lines = traceback.format_exception(exc_type,
+                                                           exc_value,
+                                                           tb)
+                    exc_value.child_traceback = ''.join(exc_lines)
+                    os.write(errpipe_write, pickle.dumps(exc_value))
+
+                # This exitcode won't be reported to applications, so it
+                # really doesn't matter what we return.
+                os._exit(255)
+
+            # Parent
+            os.close(errpipe_write)
+            if p2cread and p2cwrite:
+                os.close(p2cread)
+            if c2pwrite and c2pread:
+                os.close(c2pwrite)
+            if errwrite and errread:
+                os.close(errwrite)
+
+            # Wait for exec to fail or succeed; possibly raising exception
+            data = os.read(errpipe_read, 1048576) # Exceptions limited to 1 MB
+            os.close(errpipe_read)
+            if data != "":
+                os.waitpid(self.pid, 0)
+                child_exception = pickle.loads(data)
+                raise child_exception
+
+
+        def _handle_exitstatus(self, sts):
+            if os.WIFSIGNALED(sts):
+                self.returncode = -os.WTERMSIG(sts)
+            elif os.WIFEXITED(sts):
+                self.returncode = os.WEXITSTATUS(sts)
+            else:
+                # Should never happen
+                raise RuntimeError("Unknown child exit status!")
+
+            _active.remove(self)
+
+
+        def poll(self):
+            """Check if child process has terminated.  Returns returncode
+            attribute."""
+            if self.returncode == None:
+                try:
+                    pid, sts = os.waitpid(self.pid, os.WNOHANG)
+                    if pid == self.pid:
+                        self._handle_exitstatus(sts)
+                except os.error:
+                    pass
+            return self.returncode
+
+
+        def wait(self):
+            """Wait for child process to terminate.  Returns returncode
+            attribute."""
+            if self.returncode == None:
+                pid, sts = os.waitpid(self.pid, 0)
+                self._handle_exitstatus(sts)
+            return self.returncode
+
+
+        def communicate(self, input=None):
+            """Interact with process: Send data to stdin.  Read data from
+            stdout and stderr, until end-of-file is reached.  Wait for
+            process to terminate.  The optional input argument should be a
+            string to be sent to the child process, or None, if no data
+            should be sent to the child.
+
+            communicate() returns a tuple (stdout, stderr)."""
+            read_set = []
+            write_set = []
+            stdout = None # Return
+            stderr = None # Return
+
+            if self.stdin:
+                # Flush stdio buffer.  This might block, if the user has
+                # been writing to .stdin in an uncontrolled fashion.
+                self.stdin.flush()
+                if input:
+                    write_set.append(self.stdin)
+                else:
+                    self.stdin.close()
+            if self.stdout:
+                read_set.append(self.stdout)
+                stdout = []
+            if self.stderr:
+                read_set.append(self.stderr)
+                stderr = []
+
+            while read_set or write_set:
+                rlist, wlist, xlist = select.select(read_set, write_set, [])
+
+                if self.stdin in wlist:
+                    # When select has indicated that the file is writable,
+                    # we can write up to PIPE_BUF bytes without risk
+                    # blocking.  POSIX defines PIPE_BUF >= 512
+                    bytes_written = os.write(self.stdin.fileno(), input[:512])
+                    input = input[bytes_written:]
+                    if not input:
+                        self.stdin.close()
+                        write_set.remove(self.stdin)
+
+                if self.stdout in rlist:
+                    data = os.read(self.stdout.fileno(), 1024)
+                    if data == "":
+                        self.stdout.close()
+                        read_set.remove(self.stdout)
+                    stdout.append(data)
+
+                if self.stderr in rlist:
+                    data = os.read(self.stderr.fileno(), 1024)
+                    if data == "":
+                        self.stderr.close()
+                        read_set.remove(self.stderr)
+                    stderr.append(data)
+
+            # All data exchanged.  Translate lists into strings.
+            if stdout != None:
+                stdout = ''.join(stdout)
+            if stderr != None:
+                stderr = ''.join(stderr)
+
+            # Translate newlines, if requested.  We cannot let the file
+            # object do the translation: It is based on stdio, which is
+            # impossible to combine with select (unless forcing no
+            # buffering).
+            if self.universal_newlines and hasattr(open, 'newlines'):
+                if stdout:
+                    stdout = self._translate_newlines(stdout)
+                if stderr:
+                    stderr = self._translate_newlines(stderr)
+
+            self.wait()
+            return (stdout, stderr)
+
+
+def _demo_posix():
+    #
+    # Example 1: Simple redirection: Get process list
+    #
+    plist = Popen(["ps"], stdout=PIPE).communicate()[0]
+    print "Process list:"
+    print plist
+
+    #
+    # Example 2: Change uid before executing child
+    #
+    if os.getuid() == 0:
+        p = Popen(["id"], preexec_fn=lambda: os.setuid(100))
+        p.wait()
+
+    #
+    # Example 3: Connecting several subprocesses
+    #
+    print "Looking for 'hda'..."
+    p1 = Popen(["dmesg"], stdout=PIPE)
+    p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE)
+    print repr(p2.communicate()[0])
+
+    #
+    # Example 4: Catch execution error
+    #
+    print
+    print "Trying a weird file..."
+    try:
+        print Popen(["/this/path/does/not/exist"]).communicate()
+    except OSError, e:
+        if e.errno == errno.ENOENT:
+            print "The file didn't exist.  I thought so..."
+            print "Child traceback:"
+            print e.child_traceback
+        else:
+            print "Error", e.errno
+    else:
+        print >>sys.stderr, "Gosh.  No error."
+
+
+def _demo_windows():
+    #
+    # Example 1: Connecting several subprocesses
+    #
+    print "Looking for 'PROMPT' in set output..."
+    p1 = Popen("set", stdout=PIPE, shell=True)
+    p2 = Popen('find "PROMPT"', stdin=p1.stdout, stdout=PIPE)
+    print repr(p2.communicate()[0])
+
+    #
+    # Example 2: Simple execution of program
+    #
+    print "Executing calc..."
+    p = Popen("calc")
+    p.wait()
+
+
+if __name__ == "__main__":
+    if mswindows:
+        _demo_windows()
+    else:
+        _demo_posix()
diff -uNr PasteScript-1.7.4.2.pristine/paste/script/util/subprocess24.py PasteScript-1.7.3/paste/script/util/subprocess24.py
--- PasteScript-1.7.4.2.pristine/paste/script/util/subprocess24.py	2010-07-02 18:29:15.614507258 -0400
+++ PasteScript-1.7.4.2/paste/script/util/subprocess24.py	2010-07-02 18:36:09.199383815 -0400
@@ -1,1154 +1,4 @@
-# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
-# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
-# subprocess - Subprocesses with accessible I/O streams
-#
-# For more information about this module, see PEP 324.
-#
-# This module should remain compatible with Python 2.2, see PEP 291.
-#
-# Copyright (c) 2003-2005 by Peter Astrand <astrand@lysator.liu.se>
-#
-# Licensed to PSF under a Contributor Agreement.
-# See http://www.python.org/2.4/license for licensing details.
-
-r"""subprocess - Subprocesses with accessible I/O streams
-
-This module allows you to spawn processes, connect to their
-input/output/error pipes, and obtain their return codes.  This module
-intends to replace several other, older modules and functions, like:
-
-os.system
-os.spawn*
-os.popen*
-popen2.*
-commands.*
-
-Information about how the subprocess module can be used to replace these
-modules and functions can be found below.
-
-
-
-Using the subprocess module
-===========================
-This module defines one class called Popen:
-
-class Popen(args, bufsize=0, executable=None,
-            stdin=None, stdout=None, stderr=None,
-            preexec_fn=None, close_fds=False, shell=False,
-            cwd=None, env=None, universal_newlines=False,
-            startupinfo=None, creationflags=0):
-
-
-Arguments are:
-
-args should be a string, or a sequence of program arguments.  The
-program to execute is normally the first item in the args sequence or
-string, but can be explicitly set by using the executable argument.
-
-On UNIX, with shell=False (default): In this case, the Popen class
-uses os.execvp() to execute the child program.  args should normally
-be a sequence.  A string will be treated as a sequence with the string
-as the only item (the program to execute).
-
-On UNIX, with shell=True: If args is a string, it specifies the
-command string to execute through the shell.  If args is a sequence,
-the first item specifies the command string, and any additional items
-will be treated as additional shell arguments.
-
-On Windows: the Popen class uses CreateProcess() to execute the child
-program, which operates on strings.  If args is a sequence, it will be
-converted to a string using the list2cmdline method.  Please note that
-not all MS Windows applications interpret the command line the same
-way: The list2cmdline is designed for applications using the same
-rules as the MS C runtime.
-
-bufsize, if given, has the same meaning as the corresponding argument
-to the built-in open() function: 0 means unbuffered, 1 means line
-buffered, any other positive value means use a buffer of
-(approximately) that size.  A negative bufsize means to use the system
-default, which usually means fully buffered.  The default value for
-bufsize is 0 (unbuffered).
-
-stdin, stdout and stderr specify the executed programs' standard
-input, standard output and standard error file handles, respectively.
-Valid values are PIPE, an existing file descriptor (a positive
-integer), an existing file object, and None.  PIPE indicates that a
-new pipe to the child should be created.  With None, no redirection
-will occur; the child's file handles will be inherited from the
-parent.  Additionally, stderr can be STDOUT, which indicates that the
-stderr data from the applications should be captured into the same
-file handle as for stdout.
-
-If preexec_fn is set to a callable object, this object will be called
-in the child process just before the child is executed.
-
-If close_fds is true, all file descriptors except 0, 1 and 2 will be
-closed before the child process is executed.
-
-if shell is true, the specified command will be executed through the
-shell.
-
-If cwd is not None, the current directory will be changed to cwd
-before the child is executed.
-
-If env is not None, it defines the environment variables for the new
-process.
-
-If universal_newlines is true, the file objects stdout and stderr are
-opened as a text files, but lines may be terminated by any of '\n',
-the Unix end-of-line convention, '\r', the Macintosh convention or
-'\r\n', the Windows convention.  All of these external representations
-are seen as '\n' by the Python program.  Note: This feature is only
-available if Python is built with universal newline support (the
-default).  Also, the newlines attribute of the file objects stdout,
-stdin and stderr are not updated by the communicate() method.
-
-The startupinfo and creationflags, if given, will be passed to the
-underlying CreateProcess() function.  They can specify things such as
-appearance of the main window and priority for the new process.
-(Windows only)
-
-
-This module also defines two shortcut functions:
-
-call(*args, **kwargs):
-    Run command with arguments.  Wait for command to complete, then
-    return the returncode attribute.
-
-    The arguments are the same as for the Popen constructor.  Example:
-
-    retcode = call(["ls", "-l"])
-
-
-Exceptions
-----------
-Exceptions raised in the child process, before the new program has
-started to execute, will be re-raised in the parent.  Additionally,
-the exception object will have one extra attribute called
-'child_traceback', which is a string containing traceback information
-from the childs point of view.
-
-The most common exception raised is OSError.  This occurs, for
-example, when trying to execute a non-existent file.  Applications
-should prepare for OSErrors.
-
-A ValueError will be raised if Popen is called with invalid arguments.
-
-
-Security
---------
-Unlike some other popen functions, this implementation will never call
-/bin/sh implicitly.  This means that all characters, including shell
-metacharacters, can safely be passed to child processes.
-
-
-Popen objects
-=============
-Instances of the Popen class have the following methods:
-
-poll()
-    Check if child process has terminated.  Returns returncode
-    attribute.
-
-wait()
-    Wait for child process to terminate.  Returns returncode attribute.
-
-communicate(input=None)
-    Interact with process: Send data to stdin.  Read data from stdout
-    and stderr, until end-of-file is reached.  Wait for process to
-    terminate.  The optional stdin argument should be a string to be
-    sent to the child process, or None, if no data should be sent to
-    the child.
-
-    communicate() returns a tuple (stdout, stderr).
-
-    Note: The data read is buffered in memory, so do not use this
-    method if the data size is large or unlimited.
-
-The following attributes are also available:
-
-stdin
-    If the stdin argument is PIPE, this attribute is a file object
-    that provides input to the child process.  Otherwise, it is None.
-
-stdout
-    If the stdout argument is PIPE, this attribute is a file object
-    that provides output from the child process.  Otherwise, it is
-    None.
-
-stderr
-    If the stderr argument is PIPE, this attribute is file object that
-    provides error output from the child process.  Otherwise, it is
-    None.
-
-pid
-    The process ID of the child process.
-
-returncode
-    The child return code.  A None value indicates that the process
-    hasn't terminated yet.  A negative value -N indicates that the
-    child was terminated by signal N (UNIX only).
-
-
-Replacing older functions with the subprocess module
-====================================================
-In this section, "a ==> b" means that b can be used as a replacement
-for a.
-
-Note: All functions in this section fail (more or less) silently if
-the executed program cannot be found; this module raises an OSError
-exception.
-
-In the following examples, we assume that the subprocess module is
-imported with "from subprocess import *".
-
-
-Replacing /bin/sh shell backquote
----------------------------------
-output=`mycmd myarg`
-==>
-output = Popen(["mycmd", "myarg"], stdout=PIPE).communicate()[0]
-
-
-Replacing shell pipe line
--------------------------
-output=`dmesg | grep hda`
-==>
-p1 = Popen(["dmesg"], stdout=PIPE)
-p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE)
-output = p2.communicate()[0]
-
-
-Replacing os.system()
----------------------
-sts = os.system("mycmd" + " myarg")
-==>
-p = Popen("mycmd" + " myarg", shell=True)
-sts = os.waitpid(p.pid, 0)
-
-Note:
-
-* Calling the program through the shell is usually not required.
-
-* It's easier to look at the returncode attribute than the
-  exitstatus.
-
-A more real-world example would look like this:
-
 try:
-    retcode = call("mycmd" + " myarg", shell=True)
-    if retcode < 0:
-        print >>sys.stderr, "Child was terminated by signal", -retcode
-    else:
-        print >>sys.stderr, "Child returned", retcode
-except OSError, e:
-    print >>sys.stderr, "Execution failed:", e
-
-
-Replacing os.spawn*
--------------------
-P_NOWAIT example:
-
-pid = os.spawnlp(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg")
-==>
-pid = Popen(["/bin/mycmd", "myarg"]).pid
-
-
-P_WAIT example:
-
-retcode = os.spawnlp(os.P_WAIT, "/bin/mycmd", "mycmd", "myarg")
-==>
-retcode = call(["/bin/mycmd", "myarg"])
-
-
-Vector example:
-
-os.spawnvp(os.P_NOWAIT, path, args)
-==>
-Popen([path] + args[1:])
-
-
-Environment example:
-
-os.spawnlpe(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg", env)
-==>
-Popen(["/bin/mycmd", "myarg"], env={"PATH": "/usr/bin"})
-
-
-Replacing os.popen*
--------------------
-pipe = os.popen(cmd, mode='r', bufsize)
-==>
-pipe = Popen(cmd, shell=True, bufsize=bufsize, stdout=PIPE).stdout
-
-pipe = os.popen(cmd, mode='w', bufsize)
-==>
-pipe = Popen(cmd, shell=True, bufsize=bufsize, stdin=PIPE).stdin
-
-
-(child_stdin, child_stdout) = os.popen2(cmd, mode, bufsize)
-==>
-p = Popen(cmd, shell=True, bufsize=bufsize,
-          stdin=PIPE, stdout=PIPE, close_fds=True)
-(child_stdin, child_stdout) = (p.stdin, p.stdout)
-
-
-(child_stdin,
- child_stdout,
- child_stderr) = os.popen3(cmd, mode, bufsize)
-==>
-p = Popen(cmd, shell=True, bufsize=bufsize,
-          stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True)
-(child_stdin,
- child_stdout,
- child_stderr) = (p.stdin, p.stdout, p.stderr)
-
-
-(child_stdin, child_stdout_and_stderr) = os.popen4(cmd, mode, bufsize)
-==>
-p = Popen(cmd, shell=True, bufsize=bufsize,
-          stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
-(child_stdin, child_stdout_and_stderr) = (p.stdin, p.stdout)
-
-
-Replacing popen2.*
-------------------
-Note: If the cmd argument to popen2 functions is a string, the command
-is executed through /bin/sh.  If it is a list, the command is directly
-executed.
-
-(child_stdout, child_stdin) = popen2.popen2("somestring", bufsize, mode)
-==>
-p = Popen(["somestring"], shell=True, bufsize=bufsize
-          stdin=PIPE, stdout=PIPE, close_fds=True)
-(child_stdout, child_stdin) = (p.stdout, p.stdin)
-
-
-(child_stdout, child_stdin) = popen2.popen2(["mycmd", "myarg"], bufsize, mode)
-==>
-p = Popen(["mycmd", "myarg"], bufsize=bufsize,
-          stdin=PIPE, stdout=PIPE, close_fds=True)
-(child_stdout, child_stdin) = (p.stdout, p.stdin)
-
-The popen2.Popen3 and popen3.Popen4 basically works as subprocess.Popen,
-except that:
-
-* subprocess.Popen raises an exception if the execution fails
-* the capturestderr argument is replaced with the stderr argument.
-* stdin=PIPE and stdout=PIPE must be specified.
-* popen2 closes all filedescriptors by default, but you have to specify
-  close_fds=True with subprocess.Popen.
-
-
-"""
-
-import sys
-mswindows = (sys.platform == "win32")
-
-import os
-import types
-import traceback
-
-if mswindows:
-    import threading
-    import msvcrt
-    if 0: # <-- change this to use pywin32 instead of the _subprocess driver
-        import pywintypes
-        from win32api import GetStdHandle, STD_INPUT_HANDLE, \
-                             STD_OUTPUT_HANDLE, STD_ERROR_HANDLE
-        from win32api import GetCurrentProcess, DuplicateHandle, \
-                             GetModuleFileName, GetVersion
-        from win32con import DUPLICATE_SAME_ACCESS, SW_HIDE
-        from win32pipe import CreatePipe
-        from win32process import CreateProcess, STARTUPINFO, \
-                                 GetExitCodeProcess, STARTF_USESTDHANDLES, \
-                                 STARTF_USESHOWWINDOW, CREATE_NEW_CONSOLE
-        from win32event import WaitForSingleObject, INFINITE, WAIT_OBJECT_0
-    else:
-        raise ImportError(
-            "Windows subprocess module must be installed: see "
-            "http://effbot.org/downloads/#subprocess")
-        from _subprocess import *
-        class STARTUPINFO:
-            dwFlags = 0
-            hStdInput = None
-            hStdOutput = None
-            hStdError = None
-        class pywintypes:
-            error = IOError
-else:
-    import select
-    import errno
-    import fcntl
-    import pickle
-
-__all__ = ["Popen", "PIPE", "STDOUT", "call"]
-
-try:
-    MAXFD = os.sysconf("SC_OPEN_MAX")
-except:
-    MAXFD = 256
-
-# True/False does not exist on 2.2.0
-try:
-    False
-except NameError:
-    False = 0
-    True = 1
-
-_active = []
-
-def _cleanup():
-    for inst in _active[:]:
-        inst.poll()
-
-PIPE = -1
-STDOUT = -2
-
-
-def call(*args, **kwargs):
-    """Run command with arguments.  Wait for command to complete, then
-    return the returncode attribute.
-
-    The arguments are the same as for the Popen constructor.  Example:
-
-    retcode = call(["ls", "-l"])
-    """
-    return Popen(*args, **kwargs).wait()
-
-
-def list2cmdline(seq):
-    """
-    Translate a sequence of arguments into a command line
-    string, using the same rules as the MS C runtime:
-
-    1) Arguments are delimited by white space, which is either a
-       space or a tab.
-
-    2) A string surrounded by double quotation marks is
-       interpreted as a single argument, regardless of white space
-       contained within.  A quoted string can be embedded in an
-       argument.
-
-    3) A double quotation mark preceded by a backslash is
-       interpreted as a literal double quotation mark.
-
-    4) Backslashes are interpreted literally, unless they
-       immediately precede a double quotation mark.
-
-    5) If backslashes immediately precede a double quotation mark,
-       every pair of backslashes is interpreted as a literal
-       backslash.  If the number of backslashes is odd, the last
-       backslash escapes the next double quotation mark as
-       described in rule 3.
-    """
-
-    # See
-    # http://msdn.microsoft.com/library/en-us/vccelng/htm/progs_12.asp
-    result = []
-    needquote = False
-    for arg in seq:
-        bs_buf = []
-
-        # Add a space to separate this argument from the others
-        if result:
-            result.append(' ')
-
-        needquote = (" " in arg) or ("\t" in arg)
-        if needquote:
-            result.append('"')
-
-        for c in arg:
-            if c == '\\':
-                # Don't know if we need to double yet.
-                bs_buf.append(c)
-            elif c == '"':
-                # Double backspaces.
-                result.append('\\' * len(bs_buf)*2)
-                bs_buf = []
-                result.append('\\"')
-            else:
-                # Normal char
-                if bs_buf:
-                    result.extend(bs_buf)
-                    bs_buf = []
-                result.append(c)
-
-        # Add remaining backspaces, if any.
-        if bs_buf:
-            result.extend(bs_buf)
-
-        if needquote:
-            result.extend(bs_buf)
-            result.append('"')
-
-    return ''.join(result)
-
-
-class Popen(object):
-    def __init__(self, args, bufsize=0, executable=None,
-                 stdin=None, stdout=None, stderr=None,
-                 preexec_fn=None, close_fds=False, shell=False,
-                 cwd=None, env=None, universal_newlines=False,
-                 startupinfo=None, creationflags=0):
-        """Create new Popen instance."""
-        _cleanup()
-
-        if not isinstance(bufsize, (int, long)):
-            raise TypeError("bufsize must be an integer")
-
-        if mswindows:
-            if preexec_fn is not None:
-                raise ValueError("preexec_fn is not supported on Windows "
-                                 "platforms")
-            if close_fds:
-                raise ValueError("close_fds is not supported on Windows "
-                                 "platforms")
-        else:
-            # POSIX
-            if startupinfo is not None:
-                raise ValueError("startupinfo is only supported on Windows "
-                                 "platforms")
-            if creationflags != 0:
-                raise ValueError("creationflags is only supported on Windows "
-                                 "platforms")
-
-        self.stdin = None
-        self.stdout = None
-        self.stderr = None
-        self.pid = None
-        self.returncode = None
-        self.universal_newlines = universal_newlines
-
-        # Input and output objects. The general principle is like
-        # this:
-        #
-        # Parent                   Child
-        # ------                   -----
-        # p2cwrite   ---stdin--->  p2cread
-        # c2pread    <--stdout---  c2pwrite
-        # errread    <--stderr---  errwrite
-        #
-        # On POSIX, the child objects are file descriptors.  On
-        # Windows, these are Windows file handles.  The parent objects
-        # are file descriptors on both platforms.  The parent objects
-        # are None when not using PIPEs. The child objects are None
-        # when not redirecting.
-
-        (p2cread, p2cwrite,
-         c2pread, c2pwrite,
-         errread, errwrite) = self._get_handles(stdin, stdout, stderr)
-
-        self._execute_child(args, executable, preexec_fn, close_fds,
-                            cwd, env, universal_newlines,
-                            startupinfo, creationflags, shell,
-                            p2cread, p2cwrite,
-                            c2pread, c2pwrite,
-                            errread, errwrite)
-
-        if p2cwrite:
-            self.stdin = os.fdopen(p2cwrite, 'wb', bufsize)
-        if c2pread:
-            if universal_newlines:
-                self.stdout = os.fdopen(c2pread, 'rU', bufsize)
-            else:
-                self.stdout = os.fdopen(c2pread, 'rb', bufsize)
-        if errread:
-            if universal_newlines:
-                self.stderr = os.fdopen(errread, 'rU', bufsize)
-            else:
-                self.stderr = os.fdopen(errread, 'rb', bufsize)
-
-        _active.append(self)
-
-
-    def _translate_newlines(self, data):
-        data = data.replace("\r\n", "\n")
-        data = data.replace("\r", "\n")
-        return data
-
-
-    if mswindows:
-        #
-        # Windows methods
-        #
-        def _get_handles(self, stdin, stdout, stderr):
-            """Construct and return tupel with IO objects:
-            p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
-            """
-            if stdin == None and stdout == None and stderr == None:
-                return (None, None, None, None, None, None)
-
-            p2cread, p2cwrite = None, None
-            c2pread, c2pwrite = None, None
-            errread, errwrite = None, None
-
-            if stdin == None:
-                p2cread = GetStdHandle(STD_INPUT_HANDLE)
-            elif stdin == PIPE:
-                p2cread, p2cwrite = CreatePipe(None, 0)
-                # Detach and turn into fd
-                p2cwrite = p2cwrite.Detach()
-                p2cwrite = msvcrt.open_osfhandle(p2cwrite, 0)
-            elif type(stdin) == types.IntType:
-                p2cread = msvcrt.get_osfhandle(stdin)
-            else:
-                # Assuming file-like object
-                p2cread = msvcrt.get_osfhandle(stdin.fileno())
-            p2cread = self._make_inheritable(p2cread)
-
-            if stdout == None:
-                c2pwrite = GetStdHandle(STD_OUTPUT_HANDLE)
-            elif stdout == PIPE:
-                c2pread, c2pwrite = CreatePipe(None, 0)
-                # Detach and turn into fd
-                c2pread = c2pread.Detach()
-                c2pread = msvcrt.open_osfhandle(c2pread, 0)
-            elif type(stdout) == types.IntType:
-                c2pwrite = msvcrt.get_osfhandle(stdout)
-            else:
-                # Assuming file-like object
-                c2pwrite = msvcrt.get_osfhandle(stdout.fileno())
-            c2pwrite = self._make_inheritable(c2pwrite)
-
-            if stderr == None:
-                errwrite = GetStdHandle(STD_ERROR_HANDLE)
-            elif stderr == PIPE:
-                errread, errwrite = CreatePipe(None, 0)
-                # Detach and turn into fd
-                errread = errread.Detach()
-                errread = msvcrt.open_osfhandle(errread, 0)
-            elif stderr == STDOUT:
-                errwrite = c2pwrite
-            elif type(stderr) == types.IntType:
-                errwrite = msvcrt.get_osfhandle(stderr)
-            else:
-                # Assuming file-like object
-                errwrite = msvcrt.get_osfhandle(stderr.fileno())
-            errwrite = self._make_inheritable(errwrite)
-
-            return (p2cread, p2cwrite,
-                    c2pread, c2pwrite,
-                    errread, errwrite)
-
-
-        def _make_inheritable(self, handle):
-            """Return a duplicate of handle, which is inheritable"""
-            return DuplicateHandle(GetCurrentProcess(), handle,
-                                   GetCurrentProcess(), 0, 1,
-                                   DUPLICATE_SAME_ACCESS)
-
-
-        def _find_w9xpopen(self):
-            """Find and return absolut path to w9xpopen.exe"""
-            w9xpopen = os.path.join(os.path.dirname(GetModuleFileName(0)),
-                                    "w9xpopen.exe")
-            if not os.path.exists(w9xpopen):
-                # Eeek - file-not-found - possibly an embedding
-                # situation - see if we can locate it in sys.exec_prefix
-                w9xpopen = os.path.join(os.path.dirname(sys.exec_prefix),
-                                        "w9xpopen.exe")
-                if not os.path.exists(w9xpopen):
-                    raise RuntimeError("Cannot locate w9xpopen.exe, which is "
-                                       "needed for Popen to work with your "
-                                       "shell or platform.")
-            return w9xpopen
-
-
-        def _execute_child(self, args, executable, preexec_fn, close_fds,
-                           cwd, env, universal_newlines,
-                           startupinfo, creationflags, shell,
-                           p2cread, p2cwrite,
-                           c2pread, c2pwrite,
-                           errread, errwrite):
-            """Execute program (MS Windows version)"""
-
-            if not isinstance(args, types.StringTypes):
-                args = list2cmdline(args)
-
-            # Process startup details
-            default_startupinfo = STARTUPINFO()
-            if startupinfo == None:
-                startupinfo = default_startupinfo
-            if not None in (p2cread, c2pwrite, errwrite):
-                startupinfo.dwFlags |= STARTF_USESTDHANDLES
-                startupinfo.hStdInput = p2cread
-                startupinfo.hStdOutput = c2pwrite
-                startupinfo.hStdError = errwrite
-
-            if shell:
-                default_startupinfo.dwFlags |= STARTF_USESHOWWINDOW
-                default_startupinfo.wShowWindow = SW_HIDE
-                comspec = os.environ.get("COMSPEC", "cmd.exe")
-                args = comspec + " /c " + args
-                if (GetVersion() >= 0x80000000L or
-                        os.path.basename(comspec).lower() == "command.com"):
-                    # Win9x, or using command.com on NT. We need to
-                    # use the w9xpopen intermediate program. For more
-                    # information, see KB Q150956
-                    # (http://web.archive.org/web/20011105084002/http://support.microsoft.com/support/kb/articles/Q150/9/56.asp)
-                    w9xpopen = self._find_w9xpopen()
-                    args = '"%s" %s' % (w9xpopen, args)
-                    # Not passing CREATE_NEW_CONSOLE has been known to
-                    # cause random failures on win9x.  Specifically a
-                    # dialog: "Your program accessed mem currently in
-                    # use at xxx" and a hopeful warning about the
-                    # stability of your system.  Cost is Ctrl+C wont
-                    # kill children.
-                    creationflags |= CREATE_NEW_CONSOLE
-
-            # Start the process
-            try:
-                hp, ht, pid, tid = CreateProcess(executable, args,
-                                         # no special security
-                                         None, None,
-                                         # must inherit handles to pass std
-                                         # handles
-                                         1,
-                                         creationflags,
-                                         env,
-                                         cwd,
-                                         startupinfo)
-            except pywintypes.error, e:
-                # Translate pywintypes.error to WindowsError, which is
-                # a subclass of OSError.  FIXME: We should really
-                # translate errno using _sys_errlist (or simliar), but
-                # how can this be done from Python?
-                raise WindowsError(*e.args)
-
-            # Retain the process handle, but close the thread handle
-            self._handle = hp
-            self.pid = pid
-            ht.Close()
-
-            # Child is launched. Close the parent's copy of those pipe
-            # handles that only the child should have open.  You need
-            # to make sure that no handles to the write end of the
-            # output pipe are maintained in this process or else the
-            # pipe will not close when the child process exits and the
-            # ReadFile will hang.
-            if p2cread != None:
-                p2cread.Close()
-            if c2pwrite != None:
-                c2pwrite.Close()
-            if errwrite != None:
-                errwrite.Close()
-
-
-        def poll(self):
-            """Check if child process has terminated.  Returns returncode
-            attribute."""
-            if self.returncode == None:
-                if WaitForSingleObject(self._handle, 0) == WAIT_OBJECT_0:
-                    self.returncode = GetExitCodeProcess(self._handle)
-                    _active.remove(self)
-            return self.returncode
-
-
-        def wait(self):
-            """Wait for child process to terminate.  Returns returncode
-            attribute."""
-            if self.returncode == None:
-                obj = WaitForSingleObject(self._handle, INFINITE)
-                self.returncode = GetExitCodeProcess(self._handle)
-                _active.remove(self)
-            return self.returncode
-
-
-        def _readerthread(self, fh, buffer):
-            buffer.append(fh.read())
-
-
-        def communicate(self, input=None):
-            """Interact with process: Send data to stdin.  Read data from
-            stdout and stderr, until end-of-file is reached.  Wait for
-            process to terminate.  The optional input argument should be a
-            string to be sent to the child process, or None, if no data
-            should be sent to the child.
-
-            communicate() returns a tuple (stdout, stderr)."""
-            stdout = None # Return
-            stderr = None # Return
-
-            if self.stdout:
-                stdout = []
-                stdout_thread = threading.Thread(target=self._readerthread,
-                                                 args=(self.stdout, stdout))
-                stdout_thread.setDaemon(True)
-                stdout_thread.start()
-            if self.stderr:
-                stderr = []
-                stderr_thread = threading.Thread(target=self._readerthread,
-                                                 args=(self.stderr, stderr))
-                stderr_thread.setDaemon(True)
-                stderr_thread.start()
-
-            if self.stdin:
-                if input != None:
-                    self.stdin.write(input)
-                self.stdin.close()
-
-            if self.stdout:
-                stdout_thread.join()
-            if self.stderr:
-                stderr_thread.join()
-
-            # All data exchanged.  Translate lists into strings.
-            if stdout != None:
-                stdout = stdout[0]
-            if stderr != None:
-                stderr = stderr[0]
-
-            # Translate newlines, if requested.  We cannot let the file
-            # object do the translation: It is based on stdio, which is
-            # impossible to combine with select (unless forcing no
-            # buffering).
-            if self.universal_newlines and hasattr(open, 'newlines'):
-                if stdout:
-                    stdout = self._translate_newlines(stdout)
-                if stderr:
-                    stderr = self._translate_newlines(stderr)
-
-            self.wait()
-            return (stdout, stderr)
-
-    else:
-        #
-        # POSIX methods
-        #
-        def _get_handles(self, stdin, stdout, stderr):
-            """Construct and return tupel with IO objects:
-            p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
-            """
-            p2cread, p2cwrite = None, None
-            c2pread, c2pwrite = None, None
-            errread, errwrite = None, None
-
-            if stdin == None:
-                pass
-            elif stdin == PIPE:
-                p2cread, p2cwrite = os.pipe()
-            elif type(stdin) == types.IntType:
-                p2cread = stdin
-            else:
-                # Assuming file-like object
-                p2cread = stdin.fileno()
-
-            if stdout == None:
-                pass
-            elif stdout == PIPE:
-                c2pread, c2pwrite = os.pipe()
-            elif type(stdout) == types.IntType:
-                c2pwrite = stdout
-            else:
-                # Assuming file-like object
-                c2pwrite = stdout.fileno()
-
-            if stderr == None:
-                pass
-            elif stderr == PIPE:
-                errread, errwrite = os.pipe()
-            elif stderr == STDOUT:
-                errwrite = c2pwrite
-            elif type(stderr) == types.IntType:
-                errwrite = stderr
-            else:
-                # Assuming file-like object
-                errwrite = stderr.fileno()
-
-            return (p2cread, p2cwrite,
-                    c2pread, c2pwrite,
-                    errread, errwrite)
-
-
-        def _set_cloexec_flag(self, fd):
-            try:
-                cloexec_flag = fcntl.FD_CLOEXEC
-            except AttributeError:
-                cloexec_flag = 1
-
-            old = fcntl.fcntl(fd, fcntl.F_GETFD)
-            fcntl.fcntl(fd, fcntl.F_SETFD, old | cloexec_flag)
-
-
-        def _close_fds(self, but):
-            for i in range(3, MAXFD):
-                if i == but:
-                    continue
-                try:
-                    os.close(i)
-                except:
-                    pass
-
-
-        def _execute_child(self, args, executable, preexec_fn, close_fds,
-                           cwd, env, universal_newlines,
-                           startupinfo, creationflags, shell,
-                           p2cread, p2cwrite,
-                           c2pread, c2pwrite,
-                           errread, errwrite):
-            """Execute program (POSIX version)"""
-
-            if isinstance(args, types.StringTypes):
-                args = [args]
-
-            if shell:
-                args = ["/bin/sh", "-c"] + args
-
-            if executable == None:
-                executable = args[0]
-
-            # For transferring possible exec failure from child to parent
-            # The first char specifies the exception type: 0 means
-            # OSError, 1 means some other error.
-            errpipe_read, errpipe_write = os.pipe()
-            self._set_cloexec_flag(errpipe_write)
-
-            self.pid = os.fork()
-            if self.pid == 0:
-                # Child
-                try:
-                    # Close parent's pipe ends
-                    if p2cwrite:
-                        os.close(p2cwrite)
-                    if c2pread:
-                        os.close(c2pread)
-                    if errread:
-                        os.close(errread)
-                    os.close(errpipe_read)
-
-                    # Dup fds for child
-                    if p2cread:
-                        os.dup2(p2cread, 0)
-                    if c2pwrite:
-                        os.dup2(c2pwrite, 1)
-                    if errwrite:
-                        os.dup2(errwrite, 2)
-
-                    # Close pipe fds.  Make sure we doesn't close the same
-                    # fd more than once.
-                    if p2cread:
-                        os.close(p2cread)
-                    if c2pwrite and c2pwrite not in (p2cread,):
-                        os.close(c2pwrite)
-                    if errwrite and errwrite not in (p2cread, c2pwrite):
-                        os.close(errwrite)
-
-                    # Close all other fds, if asked for
-                    if close_fds:
-                        self._close_fds(but=errpipe_write)
-
-                    if cwd != None:
-                        os.chdir(cwd)
-
-                    if preexec_fn:
-                        apply(preexec_fn)
-
-                    if env == None:
-                        os.execvp(executable, args)
-                    else:
-                        os.execvpe(executable, args, env)
-
-                except:
-                    exc_type, exc_value, tb = sys.exc_info()
-                    # Save the traceback and attach it to the exception object
-                    exc_lines = traceback.format_exception(exc_type,
-                                                           exc_value,
-                                                           tb)
-                    exc_value.child_traceback = ''.join(exc_lines)
-                    os.write(errpipe_write, pickle.dumps(exc_value))
-
-                # This exitcode won't be reported to applications, so it
-                # really doesn't matter what we return.
-                os._exit(255)
-
-            # Parent
-            os.close(errpipe_write)
-            if p2cread and p2cwrite:
-                os.close(p2cread)
-            if c2pwrite and c2pread:
-                os.close(c2pwrite)
-            if errwrite and errread:
-                os.close(errwrite)
-
-            # Wait for exec to fail or succeed; possibly raising exception
-            data = os.read(errpipe_read, 1048576) # Exceptions limited to 1 MB
-            os.close(errpipe_read)
-            if data != "":
-                os.waitpid(self.pid, 0)
-                child_exception = pickle.loads(data)
-                raise child_exception
-
-
-        def _handle_exitstatus(self, sts):
-            if os.WIFSIGNALED(sts):
-                self.returncode = -os.WTERMSIG(sts)
-            elif os.WIFEXITED(sts):
-                self.returncode = os.WEXITSTATUS(sts)
-            else:
-                # Should never happen
-                raise RuntimeError("Unknown child exit status!")
-
-            _active.remove(self)
-
-
-        def poll(self):
-            """Check if child process has terminated.  Returns returncode
-            attribute."""
-            if self.returncode == None:
-                try:
-                    pid, sts = os.waitpid(self.pid, os.WNOHANG)
-                    if pid == self.pid:
-                        self._handle_exitstatus(sts)
-                except os.error:
-                    pass
-            return self.returncode
-
-
-        def wait(self):
-            """Wait for child process to terminate.  Returns returncode
-            attribute."""
-            if self.returncode == None:
-                pid, sts = os.waitpid(self.pid, 0)
-                self._handle_exitstatus(sts)
-            return self.returncode
-
-
-        def communicate(self, input=None):
-            """Interact with process: Send data to stdin.  Read data from
-            stdout and stderr, until end-of-file is reached.  Wait for
-            process to terminate.  The optional input argument should be a
-            string to be sent to the child process, or None, if no data
-            should be sent to the child.
-
-            communicate() returns a tuple (stdout, stderr)."""
-            read_set = []
-            write_set = []
-            stdout = None # Return
-            stderr = None # Return
-
-            if self.stdin:
-                # Flush stdio buffer.  This might block, if the user has
-                # been writing to .stdin in an uncontrolled fashion.
-                self.stdin.flush()
-                if input:
-                    write_set.append(self.stdin)
-                else:
-                    self.stdin.close()
-            if self.stdout:
-                read_set.append(self.stdout)
-                stdout = []
-            if self.stderr:
-                read_set.append(self.stderr)
-                stderr = []
-
-            while read_set or write_set:
-                rlist, wlist, xlist = select.select(read_set, write_set, [])
-
-                if self.stdin in wlist:
-                    # When select has indicated that the file is writable,
-                    # we can write up to PIPE_BUF bytes without risk
-                    # blocking.  POSIX defines PIPE_BUF >= 512
-                    bytes_written = os.write(self.stdin.fileno(), input[:512])
-                    input = input[bytes_written:]
-                    if not input:
-                        self.stdin.close()
-                        write_set.remove(self.stdin)
-
-                if self.stdout in rlist:
-                    data = os.read(self.stdout.fileno(), 1024)
-                    if data == "":
-                        self.stdout.close()
-                        read_set.remove(self.stdout)
-                    stdout.append(data)
-
-                if self.stderr in rlist:
-                    data = os.read(self.stderr.fileno(), 1024)
-                    if data == "":
-                        self.stderr.close()
-                        read_set.remove(self.stderr)
-                    stderr.append(data)
-
-            # All data exchanged.  Translate lists into strings.
-            if stdout != None:
-                stdout = ''.join(stdout)
-            if stderr != None:
-                stderr = ''.join(stderr)
-
-            # Translate newlines, if requested.  We cannot let the file
-            # object do the translation: It is based on stdio, which is
-            # impossible to combine with select (unless forcing no
-            # buffering).
-            if self.universal_newlines and hasattr(open, 'newlines'):
-                if stdout:
-                    stdout = self._translate_newlines(stdout)
-                if stderr:
-                    stderr = self._translate_newlines(stderr)
-
-            self.wait()
-            return (stdout, stderr)
-
-
-def _demo_posix():
-    #
-    # Example 1: Simple redirection: Get process list
-    #
-    plist = Popen(["ps"], stdout=PIPE).communicate()[0]
-    print "Process list:"
-    print plist
-
-    #
-    # Example 2: Change uid before executing child
-    #
-    if os.getuid() == 0:
-        p = Popen(["id"], preexec_fn=lambda: os.setuid(100))
-        p.wait()
-
-    #
-    # Example 3: Connecting several subprocesses
-    #
-    print "Looking for 'hda'..."
-    p1 = Popen(["dmesg"], stdout=PIPE)
-    p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE)
-    print repr(p2.communicate()[0])
-
-    #
-    # Example 4: Catch execution error
-    #
-    print
-    print "Trying a weird file..."
-    try:
-        print Popen(["/this/path/does/not/exist"]).communicate()
-    except OSError, e:
-        if e.errno == errno.ENOENT:
-            print "The file didn't exist.  I thought so..."
-            print "Child traceback:"
-            print e.child_traceback
-        else:
-            print "Error", e.errno
-    else:
-        print >>sys.stderr, "Gosh.  No error."
-
-
-def _demo_windows():
-    #
-    # Example 1: Connecting several subprocesses
-    #
-    print "Looking for 'PROMPT' in set output..."
-    p1 = Popen("set", stdout=PIPE, shell=True)
-    p2 = Popen('find "PROMPT"', stdin=p1.stdout, stdout=PIPE)
-    print repr(p2.communicate()[0])
-
-    #
-    # Example 2: Simple execution of program
-    #
-    print "Executing calc..."
-    p = Popen("calc")
-    p.wait()
-
-
-if __name__ == "__main__":
-    if mswindows:
-        _demo_windows()
-    else:
-        _demo_posix()
+    from subprocess import *
+except ImportError:
+    from _subprocess24 import *
diff -uNr PasteScript-1.7.4.2.pristine/paste/script/util/_uuid.py PasteScript-1.7.3/paste/script/util/_uuid.py
--- PasteScript-1.7.4.2.pristine/paste/script/util/_uuid.py	1969-12-31 19:00:00.000000000 -0500
+++ PasteScript-1.7.4.2/paste/script/util/_uuid.py	2010-07-02 18:29:24.811506395 -0400
@@ -0,0 +1,240 @@
+# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
+# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
+"""UUID (universally unique identifiers) as specified in RFC 4122.
+
+This module provides the UUID class and the functions uuid1(), uuid3(),
+uuid4(), uuid5() for generating version 1, 3, 4, and 5 UUIDs respectively.
+
+This module works with Python 2.3 or higher."""
+
+__author__ = 'Ka-Ping Yee <ping@zesty.ca>'
+__date__ = '$Date: 2005/11/30 11:51:58 $'.split()[1].replace('/', '-')
+__version__ = '$Revision: 1.10 $'
+
+RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, RESERVED_FUTURE = [
+    'reserved for NCS compatibility', 'specified in RFC 4122',
+    'reserved for Microsoft compatibility', 'reserved for future definition']
+
+class UUID(object):
+    """Instances of the UUID class represent UUIDs as specified in RFC 4122.
+    Converting a UUID to a string using str() produces a string in the form
+    "{12345678-1234-1234-1234-123456789abc}".  The UUID constructor accepts
+    a similar string (braces and hyphens optional), or six integer arguments
+    (with 32-bit, 16-bit, 16-bit, 8-bit, 8-bit, and 48-bit values
+    respectively).  UUID objects have the following attributes:
+
+        bytes       gets or sets the UUID as a 16-byte string
+
+        urn         gets the UUID as a URN as specified in RFC 4122
+
+        variant     gets or sets the UUID variant as one of the constants
+                    RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, RESERVED_FUTURE
+
+        version     gets or sets the UUID version number (1 through 5)
+    """
+
+    def __init__(self, *args):
+        """Create a UUID either from a string representation in hexadecimal
+        or from six integers (32-bit time_low, 16-bit time_mid, 16-bit
+        time_hi_ver, 8-bit clock_hi_res, 8-bit clock_low, 48-bit node)."""
+        if len(args) == 1:
+            digits = args[0].replace('urn:', '').replace('uuid:', '')
+            digits = digits.replace('{', '').replace('}', '').replace('-', '')
+            assert len(digits) == 32, ValueError('badly formed UUID string')
+            time_low = int(digits[:8], 16)
+            time_mid = int(digits[8:12], 16)
+            time_hi_ver = int(digits[12:16], 16)
+            clock_hi_res = int(digits[16:18], 16)
+            clock_low = int(digits[18:20], 16)
+            node = int(digits[20:32], 16)
+        else:
+            (time_low, time_mid, time_hi_ver,
+             clock_hi_res, clock_low, node) = args
+        assert 0 <= time_low < 0x100000000, ValueError('time_low out of range')
+        assert 0 <= time_mid < 1<<16, ValueError('time_mid out of range')
+        assert 0 <= time_hi_ver < 1<<16, ValueError('time_hi_ver out of range')
+        assert 0 <= clock_hi_res < 1<<8, ValueError('clock_hi_res out of range')
+        assert 0 <= clock_low < 1<<8, ValueError('clock_low out of range')
+        assert 0 <= node < 0x1000000000000, ValueError('node out of range')
+        self.time_low = time_low
+        self.time_mid = time_mid
+        self.time_hi_ver = time_hi_ver
+        self.clock_hi_res = clock_hi_res
+        self.clock_low = clock_low
+        self.node = node
+
+    def __cmp__(self, other):
+        return cmp(self.bytes, getattr(other, 'bytes', other))
+
+    def __str__(self):
+        return '{%08x-%04x-%04x-%02x%02x-%012x}' % (
+            self.time_low, self.time_mid, self.time_hi_ver,
+            self.clock_hi_res, self.clock_low, self.node)
+
+    def __repr__(self):
+        return 'UUID(%r)' % str(self)
+
+    def get_bytes(self):
+        def byte(n):
+            return chr(n & 0xff)
+
+        return (byte(self.time_low >> 24) + byte(self.time_low >> 16) +
+                byte(self.time_low >> 8) + byte(self.time_low) +
+                byte(self.time_mid >> 8) + byte(self.time_mid) +
+                byte(self.time_hi_ver >> 8) + byte(self.time_hi_ver) +
+                byte(self.clock_hi_res) + byte(self.clock_low) +
+                byte(self.node >> 40) + byte(self.node >> 32) +
+                byte(self.node >> 24) + byte(self.node >> 16) +
+                byte(self.node >> 8) + byte(self.node))
+
+    def set_bytes(self, bytes):
+        values = map(ord, bytes)
+        self.time_low = ((values[0] << 24) + (values[1] << 16) +
+                         (values[2] << 8) + values[3])
+        self.time_mid = (values[4] << 8) + values[5]
+        self.time_hi_ver = (values[6] << 8) + values[7]
+        self.clock_hi_res = values[8]
+        self.clock_low = values[9]
+        self.node = ((values[10] << 40) + (values[11] << 32) +
+                     (values[12] << 24) + (values[13] << 16) +
+                     (values[14] << 8) + values[15])
+
+    bytes = property(get_bytes, set_bytes)
+
+    def get_urn(self):
+        return 'urn:uuid:%08x-%04x-%04x-%02x%02x-%012x' % (
+            self.time_low, self.time_mid, self.time_hi_ver,
+            self.clock_hi_res, self.clock_low, self.node)
+
+    urn = property(get_urn)
+
+    def get_variant(self):
+        if not self.clock_hi_res & 0x80:
+            return RESERVED_NCS
+        elif not self.clock_hi_res & 0x40:
+            return RFC_4122
+        elif not self.clock_hi_res & 0x20:
+            return RESERVED_MICROSOFT
+        else:
+            return RESERVED_FUTURE
+
+    def set_variant(self, variant):
+        if variant == RESERVED_NCS:
+            self.clock_hi_res &= 0x7f
+        elif variant == RFC_4122:
+            self.clock_hi_res &= 0x3f
+            self.clock_hi_res |= 0x80
+        elif variant == RESERVED_MICROSOFT:
+            self.clock_hi_res &= 0x1f
+            self.clock_hi_res |= 0xc0
+        elif variant == RESERVED_FUTURE:
+            self.clock_hi_res &= 0x1f
+            self.clock_hi_res |= 0xe0
+        else:
+            raise ValueError('illegal variant identifier')
+
+    variant = property(get_variant, set_variant)
+
+    def get_version(self):
+        return self.time_hi_ver >> 12
+
+    def set_version(self, version):
+        assert 1 <= version <= 5, ValueError('illegal version number')
+        self.time_hi_ver &= 0x0fff
+        self.time_hi_ver |= (version << 12)
+
+    version = property(get_version, set_version)
+
+def unixgetaddr(program):
+    """Get the hardware address on a Unix machine."""
+    from os import popen
+    for line in popen(program):
+        words = line.lower().split()
+        if 'hwaddr' in words:
+            addr = words[words.index('hwaddr') + 1]
+            return int(addr.replace(':', ''), 16)
+        if 'ether' in words:
+            addr = words[words.index('ether') + 1]
+            return int(addr.replace(':', ''), 16)
+
+def wingetaddr(program):
+    """Get the hardware address on a Windows machine."""
+    from os import popen
+    for line in popen(program + ' /all'):
+        if line.strip().lower().startswith('physical address'):
+            addr = line.split(':')[-1].strip()
+            return int(addr.replace('-', ''), 16)
+
+def getaddr():
+    """Get the hardware address as a 48-bit integer."""
+    from os.path import join, isfile
+    for dir in ['/sbin', '/usr/sbin', r'c:\windows',
+                r'c:\windows\system', r'c:\windows\system32']:
+        if isfile(join(dir, 'ifconfig')):
+            return unixgetaddr(join(dir, 'ifconfig'))
+        if isfile(join(dir, 'ipconfig.exe')):
+            return wingetaddr(join(dir, 'ipconfig.exe'))
+
+def uuid1():
+    """Generate a UUID based on the time and hardware address."""
+    from time import time
+    from random import randrange
+    nanoseconds = int(time() * 1e9)
+    # 0x01b21dd213814000 is the number of 100-ns intervals between the
+    # UUID epoch 1582-10-15 00:00:00 and the Unix epoch 1970-01-01 00:00:00.
+    timestamp = int(nanoseconds/100) + 0x01b21dd213814000
+    clock = randrange(1<<16) # don't use stable storage
+    time_low = timestamp & (0x100000000 - 1)
+    time_mid = (timestamp >> 32) & 0xffff
+    time_hi_ver = (timestamp >> 48) & 0x0fff
+    clock_low = clock & 0xff
+    clock_hi_res = (clock >> 8) & 0x3f
+    node = getaddr()
+    uuid = UUID(time_low, time_mid, time_hi_ver, clock_low, clock_hi_res, node)
+    uuid.variant = RFC_4122
+    uuid.version = 1
+    return uuid
+
+def uuid3(namespace, name):
+    """Generate a UUID from the MD5 hash of a namespace UUID and a name."""
+    try:
+        from hashlib import md5
+    except ImportError:
+        from md5 import md5
+    uuid = UUID(0, 0, 0, 0, 0, 0)
+    uuid.bytes = md5(namespace.bytes + name).digest()[:16]
+    uuid.variant = RFC_4122
+    uuid.version = 3
+    return uuid
+
+def uuid4():
+    """Generate a random UUID."""
+    try:
+        from os import urandom
+    except:
+        from random import randrange
+        uuid = UUID(randrange(1<<32L), randrange(1<<16), randrange(1<<16),
+                    randrange(1<<8), randrange(1<<8), randrange(1<<48L))
+    else:
+        uuid = UUID(0, 0, 0, 0, 0, 0)
+        uuid.bytes = urandom(16)
+    uuid.variant = RFC_4122
+    uuid.version = 4
+    return uuid
+
+def uuid5(namespace, name):
+    """Generate a UUID from the SHA-1 hash of a namespace UUID and a name."""
+    try:
+        from hashlib import sha1
+    except ImportError:
+        from sha import sha as sha1
+    uuid = UUID(0, 0, 0, 0, 0, 0)
+    uuid.bytes = sha1(namespace.bytes + name).digest()[:16]
+    uuid.variant = RFC_4122
+    uuid.version = 5
+    return uuid
+
+NAMESPACE_DNS = UUID('{6ba7b810-9dad-11d1-80b4-00c04fd430c8}')
+NAMESPACE_URL = UUID('{6ba7b811-9dad-11d1-80b4-00c04fd430c8}')
+NAMESPACE_OID = UUID('{6ba7b812-9dad-11d1-80b4-00c04fd430c8}')
+NAMESPACE_X500 = UUID('{6ba7b814-9dad-11d1-80b4-00c04fd430c8}')
diff -uNr PasteScript-1.7.4.2.pristine/paste/script/util/uuid.py PasteScript-1.7.3/paste/script/util/uuid.py
--- PasteScript-1.7.4.2.pristine/paste/script/util/uuid.py	2010-07-02 18:29:15.573506512 -0400
+++ PasteScript-1.7.4.2/paste/script/util/uuid.py	2010-07-02 18:34:29.901383960 -0400
@@ -1,240 +1,4 @@
-# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
-# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
-"""UUID (universally unique identifiers) as specified in RFC 4122.
-
-This module provides the UUID class and the functions uuid1(), uuid3(),
-uuid4(), uuid5() for generating version 1, 3, 4, and 5 UUIDs respectively.
-
-This module works with Python 2.3 or higher."""
-
-__author__ = 'Ka-Ping Yee <ping@zesty.ca>'
-__date__ = '$Date: 2005/11/30 11:51:58 $'.split()[1].replace('/', '-')
-__version__ = '$Revision: 1.10 $'
-
-RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, RESERVED_FUTURE = [
-    'reserved for NCS compatibility', 'specified in RFC 4122',
-    'reserved for Microsoft compatibility', 'reserved for future definition']
-
-class UUID(object):
-    """Instances of the UUID class represent UUIDs as specified in RFC 4122.
-    Converting a UUID to a string using str() produces a string in the form
-    "{12345678-1234-1234-1234-123456789abc}".  The UUID constructor accepts
-    a similar string (braces and hyphens optional), or six integer arguments
-    (with 32-bit, 16-bit, 16-bit, 8-bit, 8-bit, and 48-bit values
-    respectively).  UUID objects have the following attributes:
-
-        bytes       gets or sets the UUID as a 16-byte string
-
-        urn         gets the UUID as a URN as specified in RFC 4122
-
-        variant     gets or sets the UUID variant as one of the constants
-                    RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, RESERVED_FUTURE
-
-        version     gets or sets the UUID version number (1 through 5)
-    """
-
-    def __init__(self, *args):
-        """Create a UUID either from a string representation in hexadecimal
-        or from six integers (32-bit time_low, 16-bit time_mid, 16-bit
-        time_hi_ver, 8-bit clock_hi_res, 8-bit clock_low, 48-bit node)."""
-        if len(args) == 1:
-            digits = args[0].replace('urn:', '').replace('uuid:', '')
-            digits = digits.replace('{', '').replace('}', '').replace('-', '')
-            assert len(digits) == 32, ValueError('badly formed UUID string')
-            time_low = int(digits[:8], 16)
-            time_mid = int(digits[8:12], 16)
-            time_hi_ver = int(digits[12:16], 16)
-            clock_hi_res = int(digits[16:18], 16)
-            clock_low = int(digits[18:20], 16)
-            node = int(digits[20:32], 16)
-        else:
-            (time_low, time_mid, time_hi_ver,
-             clock_hi_res, clock_low, node) = args
-        assert 0 <= time_low < 0x100000000, ValueError('time_low out of range')
-        assert 0 <= time_mid < 1<<16, ValueError('time_mid out of range')
-        assert 0 <= time_hi_ver < 1<<16, ValueError('time_hi_ver out of range')
-        assert 0 <= clock_hi_res < 1<<8, ValueError('clock_hi_res out of range')
-        assert 0 <= clock_low < 1<<8, ValueError('clock_low out of range')
-        assert 0 <= node < 0x1000000000000, ValueError('node out of range')
-        self.time_low = time_low
-        self.time_mid = time_mid
-        self.time_hi_ver = time_hi_ver
-        self.clock_hi_res = clock_hi_res
-        self.clock_low = clock_low
-        self.node = node
-
-    def __cmp__(self, other):
-        return cmp(self.bytes, getattr(other, 'bytes', other))
-
-    def __str__(self):
-        return '{%08x-%04x-%04x-%02x%02x-%012x}' % (
-            self.time_low, self.time_mid, self.time_hi_ver,
-            self.clock_hi_res, self.clock_low, self.node)
-
-    def __repr__(self):
-        return 'UUID(%r)' % str(self)
-
-    def get_bytes(self):
-        def byte(n):
-            return chr(n & 0xff)
-
-        return (byte(self.time_low >> 24) + byte(self.time_low >> 16) +
-                byte(self.time_low >> 8) + byte(self.time_low) +
-                byte(self.time_mid >> 8) + byte(self.time_mid) +
-                byte(self.time_hi_ver >> 8) + byte(self.time_hi_ver) +
-                byte(self.clock_hi_res) + byte(self.clock_low) +
-                byte(self.node >> 40) + byte(self.node >> 32) +
-                byte(self.node >> 24) + byte(self.node >> 16) +
-                byte(self.node >> 8) + byte(self.node))
-
-    def set_bytes(self, bytes):
-        values = map(ord, bytes)
-        self.time_low = ((values[0] << 24) + (values[1] << 16) +
-                         (values[2] << 8) + values[3])
-        self.time_mid = (values[4] << 8) + values[5]
-        self.time_hi_ver = (values[6] << 8) + values[7]
-        self.clock_hi_res = values[8]
-        self.clock_low = values[9]
-        self.node = ((values[10] << 40) + (values[11] << 32) +
-                     (values[12] << 24) + (values[13] << 16) +
-                     (values[14] << 8) + values[15])
-
-    bytes = property(get_bytes, set_bytes)
-
-    def get_urn(self):
-        return 'urn:uuid:%08x-%04x-%04x-%02x%02x-%012x' % (
-            self.time_low, self.time_mid, self.time_hi_ver,
-            self.clock_hi_res, self.clock_low, self.node)
-
-    urn = property(get_urn)
-
-    def get_variant(self):
-        if not self.clock_hi_res & 0x80:
-            return RESERVED_NCS
-        elif not self.clock_hi_res & 0x40:
-            return RFC_4122
-        elif not self.clock_hi_res & 0x20:
-            return RESERVED_MICROSOFT
-        else:
-            return RESERVED_FUTURE
-
-    def set_variant(self, variant):
-        if variant == RESERVED_NCS:
-            self.clock_hi_res &= 0x7f
-        elif variant == RFC_4122:
-            self.clock_hi_res &= 0x3f
-            self.clock_hi_res |= 0x80
-        elif variant == RESERVED_MICROSOFT:
-            self.clock_hi_res &= 0x1f
-            self.clock_hi_res |= 0xc0
-        elif variant == RESERVED_FUTURE:
-            self.clock_hi_res &= 0x1f
-            self.clock_hi_res |= 0xe0
-        else:
-            raise ValueError('illegal variant identifier')
-
-    variant = property(get_variant, set_variant)
-
-    def get_version(self):
-        return self.time_hi_ver >> 12
-
-    def set_version(self, version):
-        assert 1 <= version <= 5, ValueError('illegal version number')
-        self.time_hi_ver &= 0x0fff
-        self.time_hi_ver |= (version << 12)
-
-    version = property(get_version, set_version)
-
-def unixgetaddr(program):
-    """Get the hardware address on a Unix machine."""
-    from os import popen
-    for line in popen(program):
-        words = line.lower().split()
-        if 'hwaddr' in words:
-            addr = words[words.index('hwaddr') + 1]
-            return int(addr.replace(':', ''), 16)
-        if 'ether' in words:
-            addr = words[words.index('ether') + 1]
-            return int(addr.replace(':', ''), 16)
-
-def wingetaddr(program):
-    """Get the hardware address on a Windows machine."""
-    from os import popen
-    for line in popen(program + ' /all'):
-        if line.strip().lower().startswith('physical address'):
-            addr = line.split(':')[-1].strip()
-            return int(addr.replace('-', ''), 16)
-
-def getaddr():
-    """Get the hardware address as a 48-bit integer."""
-    from os.path import join, isfile
-    for dir in ['/sbin', '/usr/sbin', r'c:\windows',
-                r'c:\windows\system', r'c:\windows\system32']:
-        if isfile(join(dir, 'ifconfig')):
-            return unixgetaddr(join(dir, 'ifconfig'))
-        if isfile(join(dir, 'ipconfig.exe')):
-            return wingetaddr(join(dir, 'ipconfig.exe'))
-
-def uuid1():
-    """Generate a UUID based on the time and hardware address."""
-    from time import time
-    from random import randrange
-    nanoseconds = int(time() * 1e9)
-    # 0x01b21dd213814000 is the number of 100-ns intervals between the
-    # UUID epoch 1582-10-15 00:00:00 and the Unix epoch 1970-01-01 00:00:00.
-    timestamp = int(nanoseconds/100) + 0x01b21dd213814000
-    clock = randrange(1<<16) # don't use stable storage
-    time_low = timestamp & (0x100000000 - 1)
-    time_mid = (timestamp >> 32) & 0xffff
-    time_hi_ver = (timestamp >> 48) & 0x0fff
-    clock_low = clock & 0xff
-    clock_hi_res = (clock >> 8) & 0x3f
-    node = getaddr()
-    uuid = UUID(time_low, time_mid, time_hi_ver, clock_low, clock_hi_res, node)
-    uuid.variant = RFC_4122
-    uuid.version = 1
-    return uuid
-
-def uuid3(namespace, name):
-    """Generate a UUID from the MD5 hash of a namespace UUID and a name."""
-    try:
-        from hashlib import md5
-    except ImportError:
-        from md5 import md5
-    uuid = UUID(0, 0, 0, 0, 0, 0)
-    uuid.bytes = md5(namespace.bytes + name).digest()[:16]
-    uuid.variant = RFC_4122
-    uuid.version = 3
-    return uuid
-
-def uuid4():
-    """Generate a random UUID."""
-    try:
-        from os import urandom
-    except:
-        from random import randrange
-        uuid = UUID(randrange(1<<32L), randrange(1<<16), randrange(1<<16),
-                    randrange(1<<8), randrange(1<<8), randrange(1<<48L))
-    else:
-        uuid = UUID(0, 0, 0, 0, 0, 0)
-        uuid.bytes = urandom(16)
-    uuid.variant = RFC_4122
-    uuid.version = 4
-    return uuid
-
-def uuid5(namespace, name):
-    """Generate a UUID from the SHA-1 hash of a namespace UUID and a name."""
-    try:
-        from hashlib import sha1
-    except ImportError:
-        from sha import sha as sha1
-    uuid = UUID(0, 0, 0, 0, 0, 0)
-    uuid.bytes = sha1(namespace.bytes + name).digest()[:16]
-    uuid.variant = RFC_4122
-    uuid.version = 5
-    return uuid
-
-NAMESPACE_DNS = UUID('{6ba7b810-9dad-11d1-80b4-00c04fd430c8}')
-NAMESPACE_URL = UUID('{6ba7b811-9dad-11d1-80b4-00c04fd430c8}')
-NAMESPACE_OID = UUID('{6ba7b812-9dad-11d1-80b4-00c04fd430c8}')
-NAMESPACE_X500 = UUID('{6ba7b814-9dad-11d1-80b4-00c04fd430c8}')
+try:
+    from uuid import *
+except ImportError:
+    from _uuid import *