[issue27313] test case failures in test_widgets.ComboboxTest.of test_ttk_guionly on OS X with Cocoa Tk 8.5.18

[miss-islington]

Change by miss-islington <mariatta.wijaya+miss-islington at gmail.com>:


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pull_requests: +12043

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue27313>
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