Update PEP 4 to keep modules in Python 3 #69593

assignee = 'https://github.com/brettcannon'
closed_at = <Date 2015-10-16.19:12:42.014>
created_at = <Date 2015-10-14.15:59:16.130>
labels = ['docs']
title = 'Update PEP 4 to keep modules in Python 3'
updated_at = <Date 2015-10-16.19:12:42.013>
user = 'https://github.com/brettcannon'

activity = <Date 2015-10-16.19:12:42.013>
actor = 'brett.cannon'
assignee = 'brett.cannon'
closed = True
closed_date = <Date 2015-10-16.19:12:42.014>
closer = 'brett.cannon'
components = ['Documentation']
creation = <Date 2015-10-14.15:59:16.130>
creator = 'brett.cannon'
dependencies = []
files = []
hgrepos = []
issue_num = 25407
keywords = []
message_count = 2.0
messages = ['253001', '253090']
nosy_count = 2.0
nosy_names = ['brett.cannon', 'python-dev']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue25407'
versions = []