pickling and repr of exceptions with kwargs

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2016-05-13.16:59:09.479>
labels = ['type-bug', 'library', '3.9', '3.10', '3.11']
title = 'pickling and repr of exceptions with kwargs'
updated_at = <Date 2022-01-06.13:25:55.215>
user = 'https://github.com/Taywee'

bugs.python.org fields:

activity = <Date 2022-01-06.13:25:55.215>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2016-05-13.16:59:09.479>
creator = 'Taywee'
dependencies = []
files = []
hgrepos = []
issue_num = 27015
keywords = ['patch', 'patch', 'patch']
message_count = 4.0
messages = ['265482', '265486', '333769', '334626']
nosy_count = 6.0
nosy_names = ['gregory.p.smith', 'astrand', 'ncoghlan', 'serhiy.storchaka', 'Taywee', 'remi.lapeyre']
pr_nums = ['11580']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue27015'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']