exec fails to take locals into account when running list comprehensions or functions

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-10-03.09:06:43.988>
labels = ['type-feature', '3.7']
title = 'exec fails to take locals into account when running list comprehensions or functions'
updated_at = <Date 2020-11-29.17:03:44.495>
user = 'https://github.com/impact27'

bugs.python.org fields:

activity = <Date 2020-11-29.17:03:44.495>
actor = 'patterns'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2020-10-03.09:06:43.988>
creator = 'qpeter'
dependencies = []
files = []
hgrepos = []
issue_num = 41918
keywords = []
message_count = 5.0
messages = ['377862', '378614', '380876', '380877', '382077']
nosy_count = 4.0
nosy_names = ['qpeter', 'alex0kamp', 'havrikov', 'patterns']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue41918'
versions = ['Python 3.7']