Python not reentrant

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-09-17.02:04:35.399>
labels = ['interpreter-core', 'type-bug', '3.8']
title = 'Python not reentrant'
updated_at = <Date 2018-09-17.15:54:30.389>
user = 'https://github.com/skaller'

bugs.python.org fields:

activity = <Date 2018-09-17.15:54:30.389>
actor = 'eric.snow'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2018-09-17.02:04:35.399>
creator = 'skaller'
dependencies = []
files = []
hgrepos = []
issue_num = 34707
keywords = []
message_count = 4.0
messages = ['325508', '325524', '325527', '325549']
nosy_count = 5.0
nosy_names = ['ncoghlan', 'vstinner', 'eric.smith', 'eric.snow', 'skaller']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue34707'
versions = ['Python 3.8']