Merged revisions 69576,69579-69580,69589,69619-69620,69633,69703-69704,69728-69730 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r69576 | georg.brandl | 2009-02-13 04:56:50 -0600 (Fri, 13 Feb 2009) | 1 line

  #1661108: note that urlsafe encoded string can contain "=".
........
  r69579 | georg.brandl | 2009-02-13 05:06:59 -0600 (Fri, 13 Feb 2009) | 2 lines

  Fix warnings GCC emits where the argument of PyErr_Format is a single variable.
........
  r69580 | georg.brandl | 2009-02-13 05:10:04 -0600 (Fri, 13 Feb 2009) | 2 lines

  Fix warnings GCC emits where the argument of PyErr_Format is a single variable.
........
  r69589 | martin.v.loewis | 2009-02-13 14:11:34 -0600 (Fri, 13 Feb 2009) | 2 lines

  Move amd64 properties further to the top, so that they override
  the linker options correctly.
........
  r69619 | benjamin.peterson | 2009-02-14 11:00:51 -0600 (Sat, 14 Feb 2009) | 1 line

  this needn't be a shebang line
........
  r69620 | georg.brandl | 2009-02-14 11:01:36 -0600 (Sat, 14 Feb 2009) | 1 line

  #5179: don't leak PIPE fds when child execution fails.
........
  r69633 | hirokazu.yamamoto | 2009-02-15 03:19:48 -0600 (Sun, 15 Feb 2009) | 1 line

  Fixed typo.
........
  r69703 | raymond.hettinger | 2009-02-16 16:42:54 -0600 (Mon, 16 Feb 2009) | 3 lines

  Issue 5229: Documentation for super() neglects to say what super() actually does
........
  r69704 | raymond.hettinger | 2009-02-16 17:00:25 -0600 (Mon, 16 Feb 2009) | 1 line

  Add explanation for super(type1, type2).
........
  r69728 | georg.brandl | 2009-02-17 18:22:55 -0600 (Tue, 17 Feb 2009) | 2 lines

  #5297: fix example.
........
  r69729 | georg.brandl | 2009-02-17 18:25:13 -0600 (Tue, 17 Feb 2009) | 2 lines

  #5296: sequence -> iterable.
........
  r69730 | georg.brandl | 2009-02-17 18:31:36 -0600 (Tue, 17 Feb 2009) | 2 lines

  #5268: mention VMSError.
........

1 files changed, 16 insertions, 0 deletions

diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index eb4e759..5d3e040 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -521,6 +521,22 @@ class ProcessTestCase(unittest.TestCase):
         p = subprocess.Popen([sys.executable, "-c", "pass"], bufsize=None)
         self.assertEqual(p.wait(), 0)
 
+    def test_leaking_fds_on_error(self):
+        # see bug #5179: Popen leaks file descriptors to PIPEs if
+        # the child fails to execute; this will eventually exhaust
+        # the maximum number of open fds. 1024 seems a very common
+        # value for that limit, but Windows has 2048, so we loop
+        # 1024 times (each call leaked two fds).
+        for i in range(1024):
+            try:
+                subprocess.Popen(['nonexisting_i_hope'],
+                                 stdout=subprocess.PIPE,
+                                 stderr=subprocess.PIPE)
+            # Windows raises IOError
+            except (IOError, OSError) as err:
+                if err.errno != 2:  # ignore "no such file"
+                    pass # XXX see #5312
+
     #
     # POSIX tests
     #