Date parsing helpers in email module incorrectly raise IndexError for some malformed inputs #89164
Description
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 2021-08-30.18:58:53.311>
created_at = <Date 2021-08-25.13:23:27.104>
labels = ['3.8', 'expert-email', '3.10', '3.11', '3.7', 'type-crash', '3.9']
title = 'Date parsing helpers in email module incorrectly raise IndexError for some malformed inputs'
updated_at = <Date 2021-08-30.18:58:53.311>
user = 'https://github.com/wbolster'bugs.python.org fields:
activity = <Date 2021-08-30.18:58:53.311>
actor = 'ned.deily'
assignee = 'none'
closed = True
closed_date = <Date 2021-08-30.18:58:53.311>
closer = 'ned.deily'
components = ['email']
creation = <Date 2021-08-25.13:23:27.104>
creator = 'wbolster'
dependencies = []
files = []
hgrepos = []
issue_num = 45001
keywords = ['patch']
message_count = 9.0
messages = ['400261', '400262', '400351', '400356', '400357', '400358', '400655', '400657', '400658']
nosy_count = 6.0
nosy_names = ['barry', 'ned.deily', 'r.david.murray', 'lukasz.langa', 'wbolster', 'miss-islington']
pr_nums = ['27946', '27972', '27973', '27974', '27975', '27976']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue45001'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8', 'Python 3.9', 'Python 3.10', 'Python 3.11']