[3.7] bpo-34158: Documentation UTC offset update (GH-8377) (GH-9732)
* Documentation of UTC offset update
Since changes in the UTC offset that allows sub-minute offsets, the documentation needs update:
- "%z" format code documentation update
Karthikeyan Singaravelan commented on bugs.python.org:
Added as part of 018d353c1c8c87767d2335cd884017c2ce12e045 and a fix regarding duplicate words for that part was added at bac2d5ba30339298db7d4caa9c8cd31d807cf081.
Relevant format string at https://github.com/python/cpython/pull/2896/filesGH-diff-25e2d173c84057d069b7890450714eddR214.
Relevant test case with 6-digit string for microsecond : https://github.com/python/cpython/pull/2896/filesGH-diff-acc40bec51c7de832de3361db3edae52R309.
Table at https://docs.python.org/3.7/library/datetime.htmlGH-strftime-and-strptime-behavior could also be updated with microseconds being optional in the second column
%z | UTC offset in the form ±HHMM[SS] (empty string if the object is naive). | (empty), +0000, -0400, +1030
- isoformat documentation update
According to me, needs confirmation:
Relevant format string at https://github.com/python/cpython/pull/4699/filesGH-diff-25e2d173c84057d069b7890450714eddR176
Relevant test case at https://github.com/python/cpython/pull/4699/filesGH-diff-25e2d173c84057d069b7890450714edd
* From Martin Panter: some style improvment;
From @pganssle: using f for fractional part of seconds in all file.
(cherry picked from commit 92878829c31ab2fc71c60555ce87a5f6cbc876f0)
The actuall error is a hardcoded call to `future_cancel()` instead of
calling the `cancel()` method of a future-like object.
Thanks to Vladimir Matveev for noticing the code discrepancy and to
Yury Selivanov for coming up with a pathological scenario..
(cherry picked from commit 548ce9dedd2e90945970671d441436a6a91608ab)
Co-authored-by: Elvis Pranskevichus <elvis@magic.io>
https://bugs.python.org/issue34872
bpo-34879: Fix a possible null pointer dereference in bytesobject.c (GH-9683)
formatfloat() was not checking if PyBytes_FromStringAndSize()
failed, which could lead to a null pointer dereference in
_PyBytes_FormatEx().
(cherry picked from commit 96c593279400693226d5a560c420ae0fcf1731b9)
bpo-34172: multiprocessing.Pool leaks resources after being deleted (GH-8450) (GH-9676)
Fix a reference issue inside multiprocessing.Pool that caused the pool to remain alive if it was deleted without being closed or terminated explicitly.
(cherry picked from commit 97bfe8d3ebb0a54c8798f57555cb4152f9b2e1d0)
bpo-34521: Fix tests in test_multiprocessing_spawn to use correctly CMSG_SPACE (GH-9613) (GH-9619)
After some failures in AMD64 FreeBSD CURRENT Debug 3.x buildbots
regarding tests in test_multiprocessing_spawn and after examining
similar failures in test_socket, some errors in the calculation of
ancillary data buffers were found in multiprocessing.reduction.
CMSG_LEN() can often be used as the buffer size for recvmsg() to
receive a single item of ancillary data, but RFC 3542 requires portable
applications to use CMSG_SPACE() and thus include space for padding,
even when the item will be the last in the buffer.
Fix tests in test_socket to use correctly CMSG_LEN (GH-9594)
After some failures in AMD64 FreeBSD CURRENT Debug 3.x buildbots
regarding tests in test_socket that are using
testFDPassSeparateMinSpace(), FreeBDS revision 337423 was pointed
out to be the reason the test started to fail.
A close examination of the manpage for cmsg_space(3) reveals that
the number of file descriptors needs to be taken into account when
using CMSG_LEN().
This commit fixes tests in test_socket to use correctly CMSG_LEN, taking
into account the number of FDs.
(cherry picked from commit 7291108d88ea31d205da4db19d202d6cbffc6d93)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
bpo-34819: Use a monotonic clock to compute timeouts in concurrent.futures (GH-9599)
Use a monotonic clock to compute timeouts in :meth:`Executor.map` and :func:`as_completed`, in order to prevent timeouts from deviating when the system clock is adjusted.
This may not be sufficient on all systems. On POSIX for example, the actual waiting (e.g. in ``sem_timedwait``) is specified to rely on the CLOCK_REALTIME clock.
(cherry picked from commit a94ee12c26aa8dd7dce01373779df8055aff765b)
Currently, the docs state that when doing `Type[X]`, X is only allowed to
be a class, a union of classes, and Any. This pull request amends
that sentence to clarify X may also be a typevar (or a union involving
classes, Any, and TypeVars).
(cherry picked from commit 130717fe58abb2ab9e7938207df0c130a2562747)
Co-authored-by: Michael Lee <michael.lee.0x2a@gmail.com>
Victor Stinner [Wed, 26 Sep 2018 14:45:19 +0000 (07:45 -0700)]
Drop confusing commented out code in pystrtod.c (GH-6072) (GH-9586)
Fix the following warning:
Python/pystrtod.c: In function 'format_float_short':
Python/pystrtod.c:1007:13: warning: 'strncpy' output truncated before terminating nul copying 3 bytes from a string of the same length [-Wstringop-truncation]
strncpy(p, "ERR", 3);
Ned Deily [Wed, 26 Sep 2018 03:38:11 +0000 (23:38 -0400)]
bpo-34370: Update Tk 8.6 used with macOS installers
Have macOS 10.9+ installer builds for 3.7.1rc and 3.6.7rc use a development
snapshot of Tk 8.6 (post-8.6.8) to mitigate certain scroller issues seen
with IDLE and tkinter apps.
Christian Heimes [Mon, 24 Sep 2018 12:38:37 +0000 (14:38 +0200)]
[3.7] bpo-17239: Disable external entities in SAX parser (GH-9217) (GH-9511)
The SAX parser no longer processes general external entities by default
to increase security. Before, the parser created network connections
to fetch remote files or loaded local files from the file system for DTD
and entities.
Victor Stinner [Mon, 24 Sep 2018 12:03:01 +0000 (05:03 -0700)]
bpo-34783: Fix Py_Main() (GH-9526)
Fix a crash with musl libc (on Alpine Linux) when the script filename
specified on the command line doesn't exist. pymain_open_filename()
now gets the current core configuration from the interpreter state.
Modify the code to make it closer to the master branch:
* Rename _Py_CommandLineDetails to _PyCmdline
* Remove _PyMain.config: replaced with a local variable
'local_config' in pymain_init()
* Reorganize pymain_main(): move code using the "local config"
into pymain_init()
* As soon as possible, switch from the local config to the core
configuration attached to the interpreter.
Christian Heimes [Sun, 23 Sep 2018 07:22:52 +0000 (09:22 +0200)]
[3.7] bpo-34670: Add TLS 1.3 post handshake auth (GH-9460) (GH-9505)
Add SSLContext.post_handshake_auth and
SSLSocket.verify_client_post_handshake for TLS 1.3 post-handshake
authentication.
Signed-off-by: Christian Heimes <christian@python.org>q
https://bugs.python.org/issue34670.
(cherry picked from commit 9fb051f032c36b9f6086b79086b4d6b7755a3d70)
Co-authored-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue34670
bpo-34759: Fix error handling in ssl 'unwrap()' (GH-9468)
OpenSSL follows the convention that whenever you call a function, it
returns an error indicator value; and if this value is negative, then
you need to go look at the actual error code to see what happened.
Commit c6fd1c1c3a introduced a small mistake in
_ssl__SSLSocket_shutdown_impl: instead of checking whether the error
indicator was negative, it started checking whether the actual error
code was negative, and it turns out that the error codes are never
negative. So the effect was that 'unwrap()' lost the ability to raise
SSL errors.
bpo-34537: Fix test_gdb:test_strings with LC_ALL=C (GH-9483)
We cannot simply call locale.getpreferredencoding() here,
as GDB might have been linked against a different version
of Python with a different encoding and coercion policy
with respect to PEP 538 and PEP 540.
bpo-34712: Fix style in examples in "Input and Output" (GH-9361)
A couple of fixes here to make this more PEP-8:
* Avoid multiple statements on one line with `;` statement separator -- this is very rare in Python and is "generally discouraged" in PEP 8 (and if used, per PEP 8 there shouldn't be a space before the `;`)
* Add output for the first "Formatted String Literals" example. (Side note: are the doctests for this being run? If so, why didn't it fail?)
* Avoid space before `!r`. I have generally not seen spaces before the `!`, and this also matches the style used in the docs here: https://docs.python.org/3/library/string.htmlGH-format-string-syntax
* bpo-34589: C locale coercion off by default (GH-9073)
Py_Initialize() and Py_Main() cannot enable the C locale coercion
(PEP 538) anymore: it is always disabled. It can now only be enabled
by the Python program ("python3).
test_embed: get_filesystem_encoding() doesn't have to set PYTHONUTF8
nor PYTHONCOERCECLOCALE, these variables are already set in the
parent.
The test tries to fill the receiver's socket buffer and expects an
error. But the RDS protocol doesn't require that. Moreover, the Linux
implementation of RDS expects that the producer of the messages
reduces its rate, it's not the role of the receiver to trigger an
error.
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