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Stop test_idle memory leaks #71231

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terryjreedy opened this issue May 17, 2016 · 2 comments
Closed

Stop test_idle memory leaks #71231

terryjreedy opened this issue May 17, 2016 · 2 comments
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type-bug An unexpected behavior, bug, or error

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BPO 27044
Nosy @terryjreedy

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/terryjreedy'
closed_at = <Date 2016-05-17.02:29:20.514>
created_at = <Date 2016-05-17.01:18:48.906>
labels = ['type-bug']
title = 'Stop test_idle memory leaks'
updated_at = <Date 2016-05-17.02:29:20.513>
user = 'https://github.com/terryjreedy'

bugs.python.org fields:

activity = <Date 2016-05-17.02:29:20.513>
actor = 'terry.reedy'
assignee = 'terry.reedy'
closed = True
closed_date = <Date 2016-05-17.02:29:20.514>
closer = 'terry.reedy'
components = []
creation = <Date 2016-05-17.01:18:48.906>
creator = 'terry.reedy'
dependencies = []
files = []
hgrepos = []
issue_num = 27044
keywords = []
message_count = 2.0
messages = ['265743', '265747']
nosy_count = 2.0
nosy_names = ['terry.reedy', 'python-dev']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue27044'
versions = ['Python 2.7', 'Python 3.5', 'Python 3.6']
@terryjreedy
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test_idle leaked [2648, 2648, 2648] references, sum=7944
test_idle leaked [938, 940, 940] memory blocks, sum=2818

I traced this to test_configdialog and then to ConfigDialog.AttachVarCallbacks, which has 18 call like
self.fontSize.trace_variable('w', self.VarChanged_font)
Currently, root.destroy does not destroy associated callbacks. Serhiy has a patch to change this, but will do explicit cleanup for the test anyway.

@terryjreedy terryjreedy self-assigned this May 17, 2016
@terryjreedy terryjreedy added the type-bug An unexpected behavior, bug, or error label May 17, 2016
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python-dev mannequin commented May 17, 2016

New changeset 9e1c859562bb by Terry Jan Reedy in branch '2.7':
Backports: bpo-25747: remove bad test. bpo-27044: stop test_idle from leaking.
https://hg.python.org/cpython/rev/9e1c859562bb

New changeset 6a33d8d5d208 by Terry Jan Reedy in branch '3.5':
Issue bpo-27044: stop test_idle from leaking by deleting callbacks.
https://hg.python.org/cpython/rev/6a33d8d5d208

@ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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