[issue30601] [Windows] test_winconsoleio leaks references

[STINNER Victor]

New submission from STINNER Victor:

http://buildbot.python.org/all/builders/AMD64%20Windows8.1%20Refleaks%203.x/builds/22/steps/test/logs/stdio

0:00:12 [  7/405/1] test_winconsoleio failed
beginning 6 repetitions
123456
......
test_winconsoleio leaked [43, 43, 43] references, sum=129

----------
components: Tests, Windows
messages: 295445
nosy: haypo, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: [Windows] test_winconsoleio leaks references
type: resource usage
versions: Python 3.7

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30601>
_______________________________________