A possible reference leak in itertools.count()

[ZackerySpytz]

BPO	36430
Nosy	@rhettinger, @serhiy-storchaka, @ZackerySpytz, @miss-islington
PRs	bpo-36430: Fix a possible reference leak in itertools.count() #12551 [3.7] bpo-36430: Fix a possible reference leak in itertools.count(). (GH-12551) #12552 [2.7] bpo-36430: Fix a possible reference leak in itertools.count(). (GH-12551) #12554

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

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GitHub fields:

assignee = None
closed_at = <Date 2019-03-26.08:20:40.834>
created_at = <Date 2019-03-26.05:36:11.968>
labels = ['extension-modules', '3.7', '3.8']
title = 'A possible reference leak in itertools.count()'
updated_at = <Date 2019-03-26.08:20:40.833>
user = 'https://github.com/ZackerySpytz'

bugs.python.org fields:

activity = <Date 2019-03-26.08:20:40.833>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2019-03-26.08:20:40.834>
closer = 'serhiy.storchaka'
components = ['Extension Modules']
creation = <Date 2019-03-26.05:36:11.968>
creator = 'ZackerySpytz'
dependencies = []
files = []
hgrepos = []
issue_num = 36430
keywords = ['patch']
message_count = 4.0
messages = ['338853', '338854', '338856', '338859']
nosy_count = 4.0
nosy_names = ['rhettinger', 'serhiy.storchaka', 'ZackerySpytz', 'miss-islington']
pr_nums = ['12551', '12552', '12554']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue36430'
versions = ['Python 2.7', 'Python 3.7', 'Python 3.8']

[ZackerySpytz]

"long_step" is leaked in itertools_count_impl() if the type->tp_alloc() call fails.

[serhiy-storchaka]

New changeset 0523c39 by Serhiy Storchaka (Zackery Spytz) in branch 'master':
bpo-36430: Fix a possible reference leak in itertools.count(). (GH-12551)
0523c39

[miss-islington]

New changeset e0fe25b by Miss Islington (bot) in branch '3.7':
bpo-36430: Fix a possible reference leak in itertools.count(). (GH-12551)
e0fe25b

[rhettinger]

New changeset c0dce6a by Raymond Hettinger (Miss Islington (bot)) in branch '2.7':
bpo-36430: Fix a possible reference leak in itertools.count(). (GH-12551) (GH-12554)
c0dce6a