assignee = None
closed_at = <Date 2020-05-21.15:20:07.983>
created_at = <Date 2020-04-13.13:54:42.313>
labels = ['easy', 'type-feature', '3.9']
title = "mappingproxy isn't reversible"
updated_at = <Date 2020-05-21.15:20:07.982>
user = 'https://github.com/jack1142'

activity = <Date 2020-05-21.15:20:07.982>
actor = 'rhettinger'
assignee = 'none'
closed = True
closed_date = <Date 2020-05-21.15:20:07.983>
closer = 'rhettinger'
components = []
creation = <Date 2020-04-13.13:54:42.313>
creator = 'jack1142'
dependencies = []
files = []
hgrepos = []
issue_num = 40273
keywords = ['patch', 'easy (C)']
message_count = 4.0
messages = ['366315', '366321', '368421', '369522']
nosy_count = 4.0
nosy_names = ['rhettinger', 'ZackerySpytz', 'remi.lapeyre', 'jack1142']
pr_nums = ['19513']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue40273'
versions = ['Python 3.9']