Implement __length_hint__() on map() and filter() to optimize list(map) and list(filter) #71015
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GitHub fields:
assignee = 'https://github.com/rhettinger'
closed_at = <Date 2017-04-26.15:11:22.749>
created_at = <Date 2016-04-22.12:12:40.220>
labels = ['performance']
title = 'Implement __length_hint__() on map() and filter() to optimize list(map) and list(filter)'
updated_at = <Date 2019-06-27.23:33:52.101>
user = 'https://github.com/vstinner'bugs.python.org fields:
activity = <Date 2019-06-27.23:33:52.101>
actor = 'vstinner'
assignee = 'rhettinger'
closed = True
closed_date = <Date 2017-04-26.15:11:22.749>
closer = 'rhettinger'
components = []
creation = <Date 2016-04-22.12:12:40.220>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 26828
keywords = []
message_count = 16.0
messages = ['264007', '264008', '264010', '264040', '264052', '264053', '291461', '291768', '292287', '292288', '292289', '292311', '292357', '292358', '346779', '346788']
nosy_count = 7.0
nosy_names = ['rhettinger', 'terry.reedy', 'vstinner', 'alex', 'serhiy.storchaka', 'MSeifert', 'nmusolino']
pr_nums = ['1077', '14432']
priority = 'normal'
resolution = 'rejected'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'performance'
url = 'https://bugs.python.org/issue26828'
versions = ['Python 3.6']