…is present (#1130) (#1151)

…ith a macro (#1049)

if Py_LIMITED_API is not defined.

…_Size() (GH-1096) (GH-1180) (#1182)

raised an error.

(cherry picked from commit bf623ae)
(cherry picked from commit 680fea4)

…rser module. (GH-1131). (#1185)

(cherry picked from commit a79f4c2)

…exec(). (GH-1110) (#1190)

(cherry picked from commit 66bffd1)

…ies (GH-1068)

(cherry picked from commit f7e62cf)

Reported by Sean Canavan on docs@p.o.

(cherry picked from commit 8526fb7)

Skip the file if it has bad encoding.
(cherry picked from commit 58f3c9d)

) (#1226)

(cherry picked from commit 8e67528)

…H-1217) (#1219)

(cherry picked from commit 7a113a0)

…re (GH-1170) (#1246)

(cherry picked from commit ae5b326)

(cherry picked from commit 7fae81e)

…turn value. (GH-1256) (#1260)

(cherry picked from commit 85157cd)

)

(cherry picked from commit 26896f2)

(cherry picked from commit 0d637e2)

* Fix PEP 8 (SomeType instead of some_type)
* Add a function parameter annotation
* Explain, using wording from PEP 484 and PEP 526,
  why one annotation is in quotes and another is not.

Suggested by Ivan Levkevskyi.

(cherry picked from commit 87c07fe)

…H-1304)

) (GH-1314)

(cherry picked from commit 6fde770)

* bpo-30175: Skip client cert tests of test_imaplib

The IMAP server cyrus.andrew.cmu.edu doesn't accept our randomly
generated client x509 certificate anymore.

* bpo-30188: Catch EOFError in NetworkedNNTPTests

test_nntplib fails randomly with EOFError in
NetworkedNNTPTests.setUpClass(). Catch EOFError to skip tests in that
case.

(cherry picked from commit 5bccca5)

QueueListenerTest of test_logging now closes the multiprocessing
Queue and joins its thread to prevent leaking dangling threads to
following tests.

Add also @support.reap_threads to detect earlier if a test leaks
threads (and try to "cleanup" these threads).
(cherry picked from commit 8ca2f2f)

…1344)

* bpo-30107: Make SuppressCrashReport quiet on macOS (#1279) (#1335)

On macOS, SuppressCrashReport now redirects /usr/bin/defaults command
stderr into a pipe to not pollute stderr. It fixes a
test_io.test_daemon_threads_shutdown_stderr_deadlock() failure when
the CrashReporter domain doesn't exists. Message logged into stderr:

2017-04-24 16:57:21.432 defaults[41046:2462851]
The domain/default pair of (com.apple.CrashReporter, DialogType) does not exist
(cherry picked from commit d819ad9)

* bpo-30107: don't dump core on expected test_io crash (#1235)

test_io has two unit tests which trigger a deadlock:

* test_daemon_threads_shutdown_stdout_deadlock()
* test_daemon_threads_shutdown_stderr_deadlock()

These tests call Py_FatalError() if the expected bug is triggered
which calls abort(). Use test.support.SuppressCrashReport to prevent
the creation on a core dump, to fix the warning:

Warning -- files was modified by test_io
  Before: []
  After:  ['python.core']

…t.support. (#1341) (#1346)

They now work when delete replaced attribute or item inside the with
statement.  The old value of the attribute or item (or None if it doesn't
exist) now will be assigned to the target of the "as" clause, if there is
one.

(cherry picked from commit d1a1def)

(cherry picked from commit d9af733)

(cherry picked from commit 80a3da4)

Python/dtoa.c is not compiled correctly with clang 4.0 and
optimization level -O2 or higher, because of an aliasing issue on the
double/ULong[2] union. Only compile dtoa.c with -fno-strict-aliasing.

LLVM bug report:
https://bugs.llvm.org//show_bug.cgi?id=31928
(cherry picked from commit 809101f)

Add setUpModule() and tearDownModule() functions to test_site to
save/restore sys.path at the module level to prevent warning if the
user site directory is created, since site.addsitedir() modifies
sys.path.
(cherry picked from commit b85c136)

BuildExtTestCase of test_distutils now uses support.temp_cwd() in
setUp() to remove files created in the current working in all
BuildExtTestCase unit tests, not only test_build_ext().

Fix the following warning:

Warning -- files was modified by test_distutils
  Before: []
  After:  ['vc140.pdb']
(cherry picked from commit 3076895)

AsyncoreEchoServer of test_ssl now calls
asyncore.close_all(ignore_all=True) to ensure that
asyncore.socket_map is cleared once the test completes, even if
ConnectionHandler was not correctly unregistered.

Fix the following warning:

Warning -- asyncore.socket_map was modified by test_ssl
  Before: {}
  After:  {6: <test.test_ssl.AsyncoreEchoServer.EchoServer.ConnectionHandler>}
(cherry picked from commit 1dae745)