SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py

[BoboTiG]

BPO	35643
Nosy	@benjaminp, @serhiy-storchaka, @miss-islington, @BoboTiG
PRs	bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py #11411 bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py #11411 [3.7] closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411) #11412 [3.7] closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411) #11412 [3.7] closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411) #11412 [3.6] closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411) #11413 [3.6] closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411) #11413 [3.6] closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411) #11413

^{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 2019-01-02.19:41:14.577>
created_at = <Date 2019-01-02.19:01:47.035>
labels = ['extension-modules', '3.8', 'type-feature', '3.7']
title = 'SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py'
updated_at = <Date 2019-01-07.07:25:12.697>
user = 'https://github.com/BoboTiG'

bugs.python.org fields:

activity = <Date 2019-01-07.07:25:12.697>
actor = 'benjamin.peterson'
assignee = 'none'
closed = True
closed_date = <Date 2019-01-02.19:41:14.577>
closer = 'Tiger-222'
components = ['Extension Modules']
creation = <Date 2019-01-02.19:01:47.035>
creator = 'Tiger-222'
dependencies = []
files = []
hgrepos = []
issue_num = 35643
keywords = ['patch', 'patch']
message_count = 5.0
messages = ['332888', '332889', '332891', '332999', '333140']
nosy_count = 4.0
nosy_names = ['benjamin.peterson', 'serhiy.storchaka', 'miss-islington', 'Tiger-222']
pr_nums = ['11411', '11411', '11412', '11412', '11412', '11413', '11413', '11413']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue35643'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8']

[BoboTiG]

This warning is emitted on Modules/_sha3/cleanup.py, line 11:

SyntaxWarning: invalid escape sequence \
  CPP2 = re.compile("\ //(.*)")

[benjaminp]

New changeset d466c43 by Benjamin Peterson (Mickaël Schoentgen) in branch 'master':
closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411)
d466c43

[miss-islington]

New changeset 6d04bc9 by Miss Islington (bot) in branch '3.7':
closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11411)
6d04bc9

[serhiy-storchaka]

Would not be better to just remove a backslash?

[benjaminp]

New changeset 3e0144a by Benjamin Peterson (Miss Islington (bot)) in branch '3.6':
closes bpo-35643: Fix a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py (GH-11413)
3e0144a