bpo-35363: test_eintr runs eintr_tester.py in verbose mode (GH-10965)
Moreover, "python3 -m test test_eintr -v" now avoids redirecting
stdout/stderr to a pipe, the child process inherits stdout/stderr
from the parent.
(cherry picked from commit aa8ae904ad2f576f8e7b38a9a6542d3e9a569be9)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
bpo-35310: Clear select() lists before returning upon EINTR (GH-10877)
select() calls are retried on EINTR (per PEP 475). However, if a
timeout was provided and the deadline has passed after running the
signal handlers, rlist, wlist and xlist should be cleared since select(2)
left them unmodified.
(cherry picked from commit 7f52415a6d4841d77d3b7853e83b25a22e0048dc)
Co-authored-by: Oran Avraham <252748+oranav@users.noreply.github.com>
bpo-34185: Fix test module collision in test_bdb when ran as script. (GH-8537) (GH-10936)
When running test_bdb.py as a script, `import test_module` would be
importing the existing Lib/test/test_modules.py instead of the
tempcwd/test_module.py module which was dynamically created by
test_bdb.py itself.
(cherry picked from commit 54fd45505b3a365e6d53441e6dd7e0d1ec13b46f)
Co-authored-by: Alex H <1884912+lajarre@users.noreply.github.com>
* posixpath.expanduser() now returns the input path unchanged if
the HOME environment variable is not set and pwd.getpwuid() raises
KeyError (the current user identifier doesn't exist in the password
database).
* Add test_no_home_directory() to test_site.
* PyInit_time() now returns NULL if an exception is raised.
* Rename PyInit_timezone() to init_timezone(). "PyInit_" prefix is
a special prefix for function initializing a module.
init_timezone() doesn't initialize a module and the function is not
exported.
Victor Stinner [Fri, 30 Nov 2018 19:44:43 +0000 (20:44 +0100)]
bpo-35352: test_asyncio uses the certificate set from the test directory (GH-10826) (GH-10832)
Modify asyncio tests to utilize the certificates from the test directory
instead of its own set, as they are the same and with each update they had
to be updated as well.
testAccept() and testRecv() of test_socket.NonBlockingTCPTests have a
race condition: time.sleep() is used as a weak synchronization
primitive and the tests fail randomly on slow buildbots.
Use a reliable threading.Event to fix these tests.
Other changes:
* Replace send() with sendall()
* Expect specific BlockingIOError rather than generic OSError
* Add a timeout to select() in testAccept() and testRecv()
* Use addCleanup() to close sockets
* Use assertRaises()
(cherry picked from commit ebd5d6d6e6e4e751ba9c7534004aadfc27ba9265)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Julien Palard [Wed, 28 Nov 2018 16:09:18 +0000 (17:09 +0100)]
[3.6] Doc: Delete "how do I emulate os.kill" section in Windows FAQ (GH-10487) (GH-10768)
That section is a tip on how to kill process on Windows for Python prior to 2.7 and 3.2.
3.1 end of support was April 2012 and 2.6 was October 2013, so that hasn't been need for supported versions of Python for more than 5 years. Beside not being needed anymore for a long time, when I read it with the eyes of a Python profane, it makes Python looks bad, like a language from the parts with warts you need to circumvent.
Let's delete that :).
(cherry picked from commit a1c40014085d5cc6c12064577e8c10e7182ee9f9)
bpo-35317: Fix mktime() error in test_email (GH-10721)
Fix mktime() overflow error in test_email: run
test_localtime_daylight_true_dst_true() and
test_localtime_daylight_false_dst_true() with a specific timezone.
(cherry picked from commit cfaafda8e3e19764682abb4bd4c574accb784c42)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
The "-I" command line option (run Python in isolated mode) and -X
options (like -X faulthandler) are now also copied by the
multiprocessing and distutils modules when spawning child processes.
Previously, only -E and -s options (enabled by -I) were copied.
subprocess._args_from_interpreter_flags() now copies the -I flag
and options from sys._xoptions like -X dev.
Victor Stinner [Fri, 23 Nov 2018 18:00:16 +0000 (19:00 +0100)]
[3.7] bpo-35189: Retry fnctl calls on EINTR (GH-10413) (GH-10678) (GH-10685)
* bpo-35189: Fix eintr_tester.py (GH-10637)
Call setitimer() before each test method, instead of once per test
case, to ensure that signals are sent in each test method.
Previously, only the first method of a testcase class got signals.
Changes:
* Replace setUpClass() with setUp() and replace tearDownClass() with
tearDown().
* tearDown() now ensures that at least one signal has been sent.
* Replace support.run_unittest() with unittest.main() which has
a nicer CLI and automatically discover test cases.
_PyObject_Dump() now uses an heuristic to check if the object memory
has been freed: log "<freed object>" in that case.
The heuristic rely on the debug hooks on Python memory allocators
which fills the memory with DEADBYTE (0xDB) when memory is
deallocated. Use PYTHONMALLOC=debug to always enable these debug
hooks.
os_read_impl() now also truncates the size to _PY_READ_MAX
on macOS, to avoid to allocate a larger buffer even if _Py_read() is
limited to _PY_READ_MAX bytes (ex: INT_MAX on macOS).
(cherry picked from commit 9a0d7a7648547ffb77144bf2480155f6d7940dea)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Victor Stinner [Tue, 20 Nov 2018 21:36:15 +0000 (22:36 +0100)]
bpo-28604: Fix localeconv() for different LC_MONETARY (GH-10606) (GH-10619) (GH-10621)
locale.localeconv() now sets temporarily the LC_CTYPE locale to the
LC_MONETARY locale if the two locales are different and monetary
strings are non-ASCII. This temporary change affects other threads.
Changes:
* locale.localeconv() can now set LC_CTYPE to LC_MONETARY to decode
monetary fields.
* Add LocaleInfo.grouping_buffer: copy localeconv() grouping string
since it can be replaced anytime if a different thread calls
localeconv().
bpo-35021: Fix assertion failures in _datetimemodule.c. (GH-10039)
Fixes assertion failures in _datetimemodule.c
introduced in the previous fix (see bpo-31752).
Rather of trying to handle an int subclass as exact int,
let it to use overridden special methods, but check the
result of divmod().
(cherry picked from commit 3ec0f495163da3b7a15deb2805cec48aed432f58)
Fix typo in asynchronous generator iterator documentation (GH-10542)
Remove an unnecessary "that":
... will execute that the body ... -> ... will execute the body ...
(cherry picked from commit 25221b328339fb1726b58742e91b6e49c178023a)
If tracemalloc is not tracing Python memory allocations,
_PyMem_DumpTraceback() now suggests to enable tracemalloc
to get the traceback where the memory block has been allocated.
bpo-35214: Add _Py_ prefix to MEMORY_SANITIZER def. (GH-10503)
Rename our new MEMORY_SANITIZER define to _Py_MEMORY_SANITIZER.
Project based C Preprocessor namespacing at its finest. :P
(cherry picked from commit 3015fb8ce4d25603434b9b44bb7effb98a481532)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Disable getc_unlocked() with MemorySanitizer. (GH-10499)
clang's MemorySanitizer understand getc() but does not understand
getc_unlocked(). Workaround: Don't use it on msan builds.
(cherry picked from commit e6c77d8301ec1703abb755a7d3ce5bd8c999c082)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Gregory P. Smith [Tue, 13 Nov 2018 00:10:21 +0000 (16:10 -0800)]
[3.6] bpo-35214: Initial clang MemorySanitizer support (GH-10479) (GH-10493)
Adds configure flags for msan and ubsan builds to make it easier to enable.
These also encode the detail that address sanitizer and memory sanitizer
should disable pymalloc.
Define MEMORY_SANITIZER when appropriate at build time and adds workarounds
to existing code to mark things as initialized where the sanitizer is otherwise unable to
determine that. This lets our build succeed under the memory sanitizer. not all tests
pass without sanitizer failures yet but we're in pretty good shape after this.
Also includes a whitespace fix from make patchcheck to _posixsubprocess.c - unrelated to the main change that makes the CI happy so I'm just doing it now rather than creating a separate PR.
bpo-33878: Doc: Fix missing case by simplifying. (GH-7762)
The documentation was not covering multiple targets enclosed by
parenthesis nor multiple targets enclosed by brackets, adding them all
would be heavy, an else cover them all and is lighter to read.
(cherry picked from commit 082875dcd6d482558e5f1da97a1c801d60b3ed5b)
closes bpo-35204: Disable thread and memory sanitizers for address_in_range(). (GH-10442)
This function may access memory which is mapped but is considered
free by libc allocator. It behaves so by design, therefore we
need to suppress sanitizer reports.
bpo-34864: Document two IDLE on MacOS issues. (GH-10456)
The System Preferences Dock "prefer tabs always" setting disables some
IDLE features. Menus are a bit different than as described for Windows
and Linux.
(cherry picked from commit 50ff02b43145f33f8e28ffbfcc6a9d15c4749a64)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Cleanup and improve the regex tokenizer example. (GH-10426) (#10428)
1) Convert weird field name "typ" to the more standard "type".
2) For the NUMBER type, convert the value to an int() or float().
3) Simplify ``group(kind)`` to the shorter and faster ``group()`` call.
4) Simplify logic go a single if-elif chain to make this easier to extend.
5) Reorder the tests to match the order the tokens are specified.
This isn't necessary for correctness but does make the example
easier to follow.
6) Move the "column" calculation before the if-elif chain so that
users have the option of using this value in error messages.
(cherry picked from commit b83942c755a78f6d917743b73ed87a8fd9f367de)
Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
bpo-35194: Fix a wrong constant in cp932 codec (GH-10420)
This typo doesn't affect the result because wrong bits are discarded
on implicit conversion to unsigned char, but it trips UBSan
with -fsanitize=implicit-integer-truncation.