unittest swallows part of stack trace when raising AssertionError in a TestCase #69147

assignee = None
closed_at = <Date 2022-03-08.23:03:00.947>
created_at = <Date 2015-08-29.16:15:14.217>
labels = ['type-bug', 'library', '3.9', '3.10', '3.11']
title = 'unittest swallows part of stack trace when raising AssertionError in a TestCase'
updated_at = <Date 2022-03-08.23:03:00.946>
user = 'https://github.com/cjerdonek'

activity = <Date 2022-03-08.23:03:00.946>
actor = 'iritkatriel'
assignee = 'none'
closed = True
closed_date = <Date 2022-03-08.23:03:00.947>
closer = 'iritkatriel'
components = ['Library (Lib)']
creation = <Date 2015-08-29.16:15:14.217>
creator = 'chris.jerdonek'
dependencies = []
files = []
hgrepos = []
issue_num = 24959
keywords = ['patch']
message_count = 11.0
messages = ['249323', '249324', '261719', '261847', '261856', '261857', '269782', '382895', '414778', '414779', '414781']
nosy_count = 8.0
nosy_names = ['rbcollins', 'ezio.melotti', 'michael.foord', 'chris.jerdonek', 'Aaron Sokoloski', 'miss-islington', 'iritkatriel', 'dseomn']
pr_nums = ['23688', '31775', '31776']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue24959'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']