SSLWantWriteError being raised by blocking SSL socket

GitHub fields:

assignee = 'https://github.com/tiran'
closed_at = None
created_at = <Date 2017-12-05.04:01:07.917>
labels = ['3.7', 'expert-SSL', 'type-bug', 'library']
title = 'SSLWantWriteError being raised by blocking SSL socket'
updated_at = <Date 2021-06-11.13:48:18.143>
user = 'https://github.com/njsmith'

bugs.python.org fields:

activity = <Date 2021-06-11.13:48:18.143>
actor = 'altendky'
assignee = 'christian.heimes'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)', 'SSL']
creation = <Date 2017-12-05.04:01:07.917>
creator = 'njs'
dependencies = []
files = []
hgrepos = []
issue_num = 32219
keywords = []
message_count = 6.0
messages = ['307634', '307636', '307648', '307655', '391304', '391307']
nosy_count = 7.0
nosy_names = ['janssen', 'pitrou', 'christian.heimes', 'alex', 'njs', 'dstufft', 'altendky']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue32219'
versions = ['Python 3.6', 'Python 3.7']