http.cookies.SimpleCookie does not parse attribute without value (rfc2109)

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2019-06-14.08:41:30.070>
labels = ['3.7']
title = 'http.cookies.SimpleCookie does not parse attribute without value (rfc2109)'
updated_at = <Date 2019-06-14.09:14:43.527>
user = 'https://bugs.python.org/sirkonst'

bugs.python.org fields:

activity = <Date 2019-06-14.09:14:43.527>
actor = 'SilentGhost'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2019-06-14.08:41:30.070>
creator = 'sirkonst'
dependencies = []
files = []
hgrepos = []
issue_num = 37277
keywords = []
message_count = 3.0
messages = ['345563', '345564', '345565']
nosy_count = 4.0
nosy_names = ['pitrou', 'SilentGhost', 'sirkonst', 'xtreak']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue37277'
versions = ['Python 3.7']