Suggest third-party cmd2 module as alternative to cmd

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-04-05.18:51:29.459>
labels = ['3.8', 'docs']
title = 'Suggest third-party cmd2 module as alternative to cmd'
updated_at = <Date 2018-04-09.16:44:19.902>
user = 'https://github.com/ned-deily'

bugs.python.org fields:

activity = <Date 2018-04-09.16:44:19.902>
actor = 'ethan.furman'
assignee = 'docs@python'
closed = False
closed_date = None
closer = None
components = ['Documentation']
creation = <Date 2018-04-05.18:51:29.459>
creator = 'ned.deily'
dependencies = []
files = []
hgrepos = []
issue_num = 33233
keywords = []
message_count = 16.0
messages = ['315002', '315035', '315040', '315041', '315047', '315048', '315050', '315051', '315052', '315053', '315054', '315059', '315060', '315061', '315062', '315063']
nosy_count = 12.0
nosy_names = ['gvanrossum', 'barry', 'rhettinger', 'catherinedevlin', 'ned.deily', 'mcepl', 'steven.daprano', 'docs@python', 'ethan.furman', 'lukasz.langa', 'Catherine.Devlin', 'tleonhardt']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue33233'
versions = ['Python 3.8']