unexpected EPROTOTYPE returned by sendto on MAC OSX

GitHub fields:

assignee = 'https://github.com/ronaldoussoren'
closed_at = None
created_at = <Date 2018-05-09.19:04:59.565>
labels = ['OS-mac', 'type-bug', 'expert-IO', 'expert-asyncio']
title = 'unexpected EPROTOTYPE returned by sendto on MAC OSX'
updated_at = <Date 2021-06-24.12:30:33.219>
user = 'https://github.com/racitup'

bugs.python.org fields:

activity = <Date 2021-06-24.12:30:33.219>
actor = 'erlendaasland'
assignee = 'ronaldoussoren'
closed = False
closed_date = None
closer = None
components = ['macOS', 'IO', 'asyncio']
creation = <Date 2018-05-09.19:04:59.565>
creator = 'racitup'
dependencies = []
files = []
hgrepos = []
issue_num = 33450
keywords = []
message_count = 4.0
messages = ['316328', '316353', '327724', '396486']
nosy_count = 8.0
nosy_names = ['ronaldoussoren', 'ned.deily', 'asvetlov', 'yselivanov', 'racitup', 'Eamonn Nugent', 'erlendaasland', 'Daniel King']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue33450'
versions = ['Python 3.5', 'Python 3.6']