tempfile.NamedTemporaryFile can close the file too early, if not assigning to a variable #63079
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/pitrou'
closed_at = <Date 2013-12-21.21:21:12.772>
created_at = <Date 2013-08-29.20:25:43.325>
labels = ['type-bug', 'library', 'expert-IO']
title = 'tempfile.NamedTemporaryFile can close the file too early, if not assigning to a variable'
updated_at = <Date 2014-05-26.06:27:57.890>
user = 'https://bugs.python.org/jortbloem'bugs.python.org fields:
activity = <Date 2014-05-26.06:27:57.890>
actor = 'socketpair'
assignee = 'pitrou'
closed = True
closed_date = <Date 2013-12-21.21:21:12.772>
closer = 'pitrou'
components = ['Library (Lib)', 'IO']
creation = <Date 2013-08-29.20:25:43.325>
creator = 'jort.bloem'
dependencies = []
files = ['31598', '31603', '33153', '33252']
hgrepos = []
issue_num = 18879
keywords = ['patch']
message_count = 22.0
messages = ['196485', '196496', '196501', '196504', '196507', '196952', '196985', '196991', '196992', '197016', '197019', '204723', '206257', '206258', '206554', '206776', '206778', '206780', '206781', '206782', '216506', '219138']
nosy_count = 15.0
nosy_names = ['georg.brandl', 'ncoghlan', 'ctheune', 'pitrou', 'vstinner', 'Arfrever', 'r.david.murray', 'meador.inge', 'socketpair', 'python-dev', 'martin.panter', 'serhiy.storchaka', 'jort.bloem', 'Zden\xc4\x9bk.Pavlas', 'jstasiak']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue18879'
versions = ['Python 2.7', 'Python 3.4', 'Python 3.5']