asyncio.open_connection(local_addr=('localhost', port)) fails with TypeError: AF_INET address must be a pair (host, port) #86508

assignee = None
closed_at = None
created_at = <Date 2020-11-13.10:23:37.431>
labels = ['type-bug', '3.8', 'expert-asyncio']
title = "asyncio.open_connection(local_addr=('localhost', port)) fails with TypeError: AF_INET address must be a pair (host, port)"
updated_at = <Date 2020-11-13.10:23:37.431>
user = 'https://github.com/ecatmur'

activity = <Date 2020-11-13.10:23:37.431>
actor = 'ecatmur2'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['asyncio']
creation = <Date 2020-11-13.10:23:37.431>
creator = 'ecatmur2'
dependencies = []
files = []
hgrepos = []
issue_num = 42342
keywords = []
message_count = 1.0
messages = ['380874']
nosy_count = 3.0
nosy_names = ['asvetlov', 'yselivanov', 'ecatmur2']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue42342'
versions = ['Python 3.8']