- new PYTHONCOERCECLOCALE config setting
- coerces legacy C locale to C.UTF-8, C.utf8 or UTF-8 by default
- always uses C.UTF-8 on Android
- uses `surrogateescape` on stdin and stdout in the coercion
  target locales
- configure option to disable locale coercion at build time
- configure option to disable C locale warning at build time

Windows requires at least the SYSTEMROOT environment variable to start Python.
If run_python_until_end() doesn't copy SYSTEMROOT, the function always fail on
Windows.

If Popen.communicate() raises an exception, kill the child process to not leave
a running child process in background and maybe create a zombi process.

This change fixes a ResourceWarning in Python 3.6 when unit tests are
interrupted by CTRL+c.

Patch by Christie Wilson.

while it is holding a lock to a buffered I/O object, and the main thread
tries to use the same I/O object (typically stdout or stderr).  A fatal
error is emitted instead.

If Python failed, show also stdout in the assertion error.

pass -I or -E to the child process by default when the environment is required
for the child process interpreter to function properly.

interpreter under test is being run in an environment that requires the use of
environment variables such as PYTHONHOME in order to function at all.

Adds a private test.script_helper._interpreter_requires_environment() function
to be used with @unittest.skipIf on stdlib test methods requiring this.

Python subprocess failure assertion error messages for easier debugging.

Adds a unittest for test.script_helper to confirm that this code works as
it is otherwise uncovered by an already passing test suite that uses it. :)

Note that __spec__.name is not currently guaranteed to be in
sys.modules when the code is running, only __name__ is.

The "running module is in sys.modules" invariant will be
expanded to also cover __spec__.name in a subsequent patch.

Patch by Chris Jerdonek

in subprocesses.

Original patch by Stefano Taschini.

in order to make algorithmic complexity attacks on (e.g.) web apps much more complicated.

The environment variable PYTHONHASHSEED and the new command line flag -R control this
behavior.

Merged revisions 86542,87136,87216,87221,87228,87256,87337-87338,87372,87516,87571,88164 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r86542 | r.david.murray | 2010-11-19 22:48:58 -0500 (Fri, 19 Nov 2010) | 2 lines

  Make test class name unique so that both test classes run.
........
  r87136 | r.david.murray | 2010-12-08 17:53:00 -0500 (Wed, 08 Dec 2010) | 6 lines

  Have script_helper._assert_python strip refcount strings from stderr.

  This makes the output of the function and those that depend on it
  independent of whether or not they are being run under a debug
  build.
........
  r87216 | r.david.murray | 2010-12-13 17:50:30 -0500 (Mon, 13 Dec 2010) | 2 lines

  #10698: fix typo in example.
........
  r87221 | r.david.murray | 2010-12-13 19:55:46 -0500 (Mon, 13 Dec 2010) | 4 lines

  #10699: fix docstring for tzset: it does not take a parameter

  Thanks to Garrett Cooper for the fix.
........
  r87228 | r.david.murray | 2010-12-13 21:25:43 -0500 (Mon, 13 Dec 2010) | 2 lines

  Turn on regrtest -W (rerun immediately) option for Windows, too.
........
  r87256 | r.david.murray | 2010-12-14 21:19:14 -0500 (Tue, 14 Dec 2010) | 2 lines

  #10705: document what the values of debuglevel are and mean.
........
  r87337 | r.david.murray | 2010-12-17 11:11:40 -0500 (Fri, 17 Dec 2010) | 2 lines

  #10559: provide instructions for accessing sys.argv when first mentioned.
........
  r87338 | r.david.murray | 2010-12-17 11:29:07 -0500 (Fri, 17 Dec 2010) | 2 lines

  #10454: clarify the compileall docs and help messages.
  [changes to compileall.py were not backported, only the doc changes]
........
  r87372 | r.david.murray | 2010-12-18 11:39:06 -0500 (Sat, 18 Dec 2010) | 2 lines

  #10728: the default for printing help is sys.stdout, not stderr.
........
  r87516 | r.david.murray | 2010-12-27 15:09:32 -0500 (Mon, 27 Dec 2010) | 5 lines

  #7056: runtest and runtest_inner don't use testdir, so drop it from their sigs

  I've only tested regular runs and -j runs.  If I've broken anything
  else I'm sure I'll hear about it sooner or later.
........
  r87571 | r.david.murray | 2010-12-29 14:06:48 -0500 (Wed, 29 Dec 2010) | 2 lines

  Fix same typo in docs.
........
  r88164 | r.david.murray | 2011-01-24 14:34:58 -0500 (Mon, 24 Jan 2011) | 12 lines

  #10960: fix 'stat' links, link to lstat from stat, general tidy of stat doc.

  Original patch by Michal Nowikowski, with some additions and wording
  fixes by me.

  I changed the wording from 'Performs a stat system call' to 'Performs
  the equivalent of a stat system call', since on Windows there are no
  stat/lstat system calls involved.  I also extended Michal's breakout
  of the attributes into a list to the other paragraphs, and rearranged
  the order of the paragraphs in the 'stat' docs to make it flow
  better and put it in what I think is a more logical/useful order.
........

svn+ssh://pythondev@svn.python.org/python/branches/py3k


........
  r87136 | r.david.murray | 2010-12-08 17:53:00 -0500 (Wed, 08 Dec 2010) | 6 lines

  Have script_helper._assert_python strip refcount strings from stderr.

  This makes the output of the function and those that depend on it
  independent of whether or not they are being run under a debug
  build.
........
  r87221 | r.david.murray | 2010-12-13 19:55:46 -0500 (Mon, 13 Dec 2010) | 4 lines

  #10699: fix docstring for tzset: it does not take a parameter

  Thanks to Garrett Cooper for the fix.
........
  r87256 | r.david.murray | 2010-12-14 21:19:14 -0500 (Tue, 14 Dec 2010) | 2 lines

  #10705: document what the values of debuglevel are and mean.
........
  r87337 | r.david.murray | 2010-12-17 11:11:40 -0500 (Fri, 17 Dec 2010) | 2 lines

  #10559: provide instructions for accessing sys.argv when first mentioned.
........
  r87338 | r.david.murray | 2010-12-17 11:29:07 -0500 (Fri, 17 Dec 2010) | 2 lines

  #10454: clarify the compileall docs and help messages.
    [compileall.py changes not backported.]
........
  r87571 | r.david.murray | 2010-12-29 14:06:48 -0500 (Wed, 29 Dec 2010) | 2 lines

  Fix same typo in docs.
........
  r87839 | r.david.murray | 2011-01-07 16:57:25 -0500 (Fri, 07 Jan 2011) | 9 lines

  Fix formatting of values with embedded newlines when rfc2047 encoding

  Before this patch if a value being encoded had an embedded newline,
  the line following the newline would have no leading whitespace,
  and the whitespace it did have was encoded into the word.  Now
  the existing whitespace gets turned into a blank, the way it does
  in other header reformatting, and the _continuation_ws gets added
  at the beginning of the encoded line.
........
  r88164 | r.david.murray | 2011-01-24 14:34:58 -0500 (Mon, 24 Jan 2011) | 12 lines

  #10960: fix 'stat' links, link to lstat from stat, general tidy of stat doc.

  Original patch by Michal Nowikowski, with some additions and wording
  fixes by me.

  I changed the wording from 'Performs a stat system call' to 'Performs
  the equivalent of a stat system call', since on Windows there are no
  stat/lstat system calls involved.  I also extended Michal's breakout
  of the attributes into a list to the other paragraphs, and rearranged
  the order of the paragraphs in the 'stat' docs to make it flow
  better and put it in what I think is a more logical/useful order.
........

This makes the output of the function and those that depend on it
independent of whether or not they are being run under a debug
build.

Merged revisions 86395 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r86395 | antoine.pitrou | 2010-11-10 14:55:25 +0100 (mer., 10 nov. 2010) | 4 lines

  Issue #10372: Import the warnings module only after the IO library is
  initialized, so as to avoid bootstrap issues with the '-W' option.
........

a shortened version of Lib/test/script_helper.py.

Merged revisions 86395 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r86395 | antoine.pitrou | 2010-11-10 14:55:25 +0100 (mer., 10 nov. 2010) | 4 lines

  Issue #10372: Import the warnings module only after the IO library is
  initialized, so as to avoid bootstrap issues with the '-W' option.
........

easier writing of unit tests and better error reporting.

Issue #8202: Set sys.argv[0] to -m rather than -c while searching for the module to execute. Also updates all the cmd_line_script tests to validate the setting of sys.path[0] and the current working directory