.truncate(0) doesn't rewind.

anymore

regrtest doesn't check that a test doesn't output anything anymore.

regrtest doesn't check that tests doesn't write something to stdout anymore.

Don't replace sys.stdout by the original sys.stdout to be able to capture the
output for regrtest -W.

If verbose is False, the output is empty. Fix also a typo in a variable name.

 * Don't force verbose to True with option -W
 * Rename rerun_failed variable to output_on_failure

a io.StringIO object by regrtest (which has no file descriptor).

the output and displays it on failure instead. regrtest -v doesn't print the
error twice anymore if there is only one error.

os.lchflags() are once again built on systems that support these
functions (*BSD and OS X).  Also add new stat file flags for OS X
(UF_HIDDEN and UF_COMPRESSED).  Also add additional tests for
os.chflags() and os.lchflags(). (Tests by Garrett Cooper)

A patch from Vincent Legoll.

Patch by Francisco Martín Brugué.

Locks are implemented using a mutex and a condition variable of the pthread
library on FreeBSD6. POSIX condition variables cannot be interrupted by signals
(see pthread_cond_wait manual page).

Cannot test an empty environment on Windows: Windows requires at least the
SYSTEMROOT environment variable to start Python.

Mac OS X adds __CF_USER_TEXT_ENCODING variable to an empty environment. Fix
also the test on the Py_ENABLE_SHARED config varible: test that the variable is
present, don't check it's value.

Try also to get more informations about the Mac OS X failure: display the keys
of the environment, instead of just the number of variables.

variables, start with an empty environment.

processes if negative or null.

This makes them work like the close provided by regular file objects.

All of the other methods in mailbox that create message objects take care to
close the file descriptors they use, so it seems to make sense to have
__getitem__ do so as well.

Patch by Filip Gruszczyński.

AbstractHTTPHandler.do_open() of urllib.request closes the HTTP connection if
its getresponse() method fails with a socket error. Patch written by Ezio
Melotti.

Use of DeviceIoControl to obtain the symlink path via the reparse tag was
removed. The code now uses GetFinalPathNameByHandle in the case of a
symbolic link and works properly given the added test which creates a symbolic
link and calls os.stat on it from multiple locations.

Victor Stinner also noticed an issue with os.lstat following the os.stat
code path when being passed bytes. The posix_lstat function was adjusted to
properly hook up win32_lstat instead of the previous STAT macro (win32_stat).

This allows findsource() to work in doctests.

A patch from Dirkjan Ochtman.

Just try to open files from the ZIP for reading, don't extract them to avoid
UnicodeEncodeError if the filename is not encodable to the filesystem encoding
(e.g. ASCII locale encoding).

Original fix by 'rep', final patch (with tests) by Xuanji Li.

I unfortunately introduced the regression when I refactored the code,
and there were no tests of quoting so it wasn't caught.  Now there
is one.

test_multibytecodec_support. Improve also error message of the
test_errorhandle() of TestBase.

descriptor of a pipe closed in the parent process is valid in the child process
according to fstat(), but the mode of the file descriptor is invalid, and read
or write raise an error.

Add also requires_mac_ver() decorator to test.support.

constructor has failed, e.g. because of an undeclared keyword argument. Patch
written by Oleg Oshmyan.

iso2022_jp, iso2022_jp_2 and iso2022_kr