Error in metaclass search order #42380

assignee = None
closed_at = <Date 2020-05-31.12:39:15.458>
created_at = <Date 2005-09-18.01:07:12.000>
labels = ['interpreter-core', 'type-bug']
title = 'Error in metaclass search order'
updated_at = <Date 2020-05-31.12:39:15.457>
user = 'https://bugs.python.org/pwerneck'

activity = <Date 2020-05-31.12:39:15.457>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2020-05-31.12:39:15.458>
closer = 'serhiy.storchaka'
components = ['Interpreter Core']
creation = <Date 2005-09-18.01:07:12.000>
creator = 'pwerneck'
dependencies = []
files = ['21522', '21530', '21729', '21754', '21756']
hgrepos = []
issue_num = 1294232
keywords = ['patch']
message_count = 31.0
messages = ['26304', '26305', '26306', '113209', '113239', '116316', '123420', '127315', '132876', '132880', '132926', '134052', '134054', '134055', '134097', '134116', '134173', '134178', '134212', '134225', '134227', '134228', '134254', '134256', '134263', '144242', '146230', '146232', '146547', '146558', '370429']
nosy_count = 16.0
nosy_names = ['gvanrossum', 'barry', 'georg.brandl', 'terry.reedy', 'amaury.forgeotdarc', 'ncoghlan', 'rodsenra', 'pwerneck', 'benjamin.peterson', 'flox', 'meador.inge', 'daniel.urban', 'python-dev', 'eric.snow', 'serhiy.storchaka', 'bruno.dupuis']
pr_nums = []
priority = 'low'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue1294232'
versions = ['Python 2.7']