ftplib __init__ function can't handle 120 or 4xy reply when connect to the server

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-08-10.04:57:33.953>
labels = ['type-bug', 'library']
title = "ftplib __init__ function can't handle 120 or 4xy reply when connect to the server"
updated_at = <Date 2019-05-31.09:46:49.481>
user = 'https://bugs.python.org/H-ZeX'

bugs.python.org fields:

activity = <Date 2019-05-31.09:46:49.481>
actor = 'giampaolo.rodola'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2018-08-10.04:57:33.953>
creator = 'H-ZeX'
dependencies = []
files = []
hgrepos = []
issue_num = 34368
keywords = []
message_count = 2.0
messages = ['323354', '344052']
nosy_count = 3.0
nosy_names = ['giampaolo.rodola', 'H-ZeX', 'Jeffrey.Kintscher']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue34368'
versions = ['Python 3.5']