Implement “Happy Eyeballs” algorithim (RFC 8305) in socket.create_connection()

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-07-15.12:05:20.908>
labels = ['library', '3.9', 'performance']
title = 'Implement \xe2\x80\x9cHappy Eyeballs\xe2\x80\x9d algorithim (RFC 8503) in socket.create_connection()'
updated_at = <Date 2021-07-15.12:05:20.908>
user = 'https://bugs.python.org/origin400-p'

bugs.python.org fields:

activity = <Date 2021-07-15.12:05:20.908>
actor = 'origin400-p'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-07-15.12:05:20.908>
creator = 'origin400-p'
dependencies = []
files = []
hgrepos = []
issue_num = 44644
keywords = []
message_count = 1.0
messages = ['397542']
nosy_count = 1.0
nosy_names = ['origin400-p']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue44644'
versions = ['Python 3.9']