Optimize list comprehensions with preallocate size and protect against overflow #80732
Description
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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GitHub fields:
assignee = 'https://github.com/tonybaloney'
closed_at = <Date 2019-05-09.06:56:01.430>
created_at = <Date 2019-04-08.01:28:21.834>
labels = ['interpreter-core', 'type-feature', '3.8']
title = 'Optimize list comprehensions with preallocate size and protect against overflow'
updated_at = <Date 2019-05-09.09:06:57.743>
user = 'https://github.com/tonybaloney'bugs.python.org fields:
activity = <Date 2019-05-09.09:06:57.743>
actor = 'serhiy.storchaka'
assignee = 'anthonypjshaw'
closed = True
closed_date = <Date 2019-05-09.06:56:01.430>
closer = 'anthonypjshaw'
components = ['Interpreter Core']
creation = <Date 2019-04-08.01:28:21.834>
creator = 'anthony shaw'
dependencies = []
files = []
hgrepos = []
issue_num = 36551
keywords = ['patch']
message_count = 26.0
messages = ['339586', '339594', '339595', '339612', '339613', '339614', '339617', '339618', '339619', '339620', '339621', '339622', '339623', '339625', '339626', '339627', '339628', '339630', '339631', '339636', '339640', '339684', '339699', '339702', '339709', '341975']
nosy_count = 8.0
nosy_names = ['ronaldoussoren', 'ncoghlan', 'methane', 'serhiy.storchaka', 'Aaron Hall', 'anthonypjshaw', 'pablogsal', 'anthony shaw']
pr_nums = ['12718']
priority = 'normal'
resolution = 'rejected'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue36551'
versions = ['Python 3.8']