memory used by frozenset created from set differs from that of frozenset created from other iterable #65706

assignee = 'https://github.com/rhettinger'
closed_at = <Date 2014-05-19.19:52:06.894>
created_at = <Date 2014-05-14.12:32:52.534>
labels = ['invalid', 'performance']
title = 'memory used by frozenset created from set differs from that of frozenset created from other iterable'
updated_at = <Date 2014-05-19.19:52:06.893>
user = 'https://bugs.python.org/lebedov'

activity = <Date 2014-05-19.19:52:06.893>
actor = 'rhettinger'
assignee = 'rhettinger'
closed = True
closed_date = <Date 2014-05-19.19:52:06.894>
closer = 'rhettinger'
components = []
creation = <Date 2014-05-14.12:32:52.534>
creator = 'lebedov'
dependencies = []
files = ['35255']
hgrepos = []
issue_num = 21507
keywords = ['patch']
message_count = 8.0
messages = ['218524', '218582', '218589', '218593', '218595', '218638', '218654', '218754']
nosy_count = 6.0
nosy_names = ['rhettinger', 'pitrou', 'vstinner', 'serhiy.storchaka', 'josh.r', 'lebedov']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = 'resource usage'
url = 'https://bugs.python.org/issue21507'
versions = ['Python 3.5']