There is no way to json encode object to str.

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-12-30.20:22:51.914>
labels = ['library']
title = 'There is no way to json encode object to str.'
updated_at = <Date 2021-08-31.20:34:24.741>
user = 'https://bugs.python.org/kaltovichartyom'

bugs.python.org fields:

activity = <Date 2021-08-31.20:34:24.741>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-12-30.20:22:51.914>
creator = 'kaltovichartyom'
dependencies = []
files = []
hgrepos = []
issue_num = 42791
keywords = []
message_count = 2.0
messages = ['384085', '400776']
nosy_count = 4.0
nosy_names = ['rhettinger', 'ezio.melotti', 'iritkatriel', 'kaltovichartyom']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue42791'
versions = []