Readd PyArg_VaParse to the stable API

[serhiy-storchaka]

BPO	29083
Nosy	@loewis, @serhiy-storchaka
PRs	[Do Not Merge] Convert Misc/NEWS so that it is managed by towncrier #552
Files	PyArg_VaParse-limited-api.patch

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = 'https://github.com/serhiy-storchaka'
closed_at = <Date 2017-01-25.10:12:03.318>
created_at = <Date 2016-12-27.13:41:52.484>
labels = ['interpreter-core', 'build', '3.7']
title = 'Readd PyArg_VaParse to the stable API'
updated_at = <Date 2017-03-31.16:36:28.096>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2017-03-31.16:36:28.096>
actor = 'dstufft'
assignee = 'serhiy.storchaka'
closed = True
closed_date = <Date 2017-01-25.10:12:03.318>
closer = 'serhiy.storchaka'
components = ['Interpreter Core']
creation = <Date 2016-12-27.13:41:52.484>
creator = 'serhiy.storchaka'
dependencies = []
files = ['46383']
hgrepos = []
issue_num = 29083
keywords = ['patch']
message_count = 3.0
messages = ['284097', '286018', '286209']
nosy_count = 3.0
nosy_names = ['loewis', 'python-dev', 'serhiy.storchaka']
pr_nums = ['552']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'compile error'
url = 'https://bugs.python.org/issue29083'
versions = ['Python 3.5', 'Python 3.6', 'Python 3.7']

[serhiy-storchaka]

Seems PyArg_VaParse() and PyArg_VaParseTupleAndKeywords() were excluded from the stable API by the mistake in fixing bpo-11626. These functions was in the stable API before 3.3, and the documentation doesn't mention that they are not in the stable API.

I think they should be readded to the stable API.

[serhiy-storchaka]

There are also issues with PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and Py_BuildValue(). Their declarations are not available if define PY_SSIZE_T_CLEAN and Py_LIMITED_API < 3.3. But they were available in Python 3.2.

Proposed patch fixes these glitches.

[python-dev]

New changeset 5cdf383ef35c by Serhiy Storchaka in branch '3.5':
Issue bpo-29083: Fixed the declaration of some public API functions.
https://hg.python.org/cpython/rev/5cdf383ef35c

New changeset 8eae65136000 by Serhiy Storchaka in branch '3.6':
Issue bpo-29083: Fixed the declaration of some public API functions.
https://hg.python.org/cpython/rev/8eae65136000

New changeset b63d096403f4 by Serhiy Storchaka in branch 'default':
Issue bpo-29083: Fixed the declaration of some public API functions.
https://hg.python.org/cpython/rev/b63d096403f4