On 3.6.0a2, 3.5.2rc1, and 2.7.12rc1:

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FAIL: test_identify (tkinter.test.test_ttk.test_widgets.ComboboxTest)
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Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/tkinter/test/test_ttk/test_widgets.py", line 332, in test_identify
    self.assertEqual(self.entry.identify(5, 5), "textarea")
AssertionError: 'Combobox.button' != 'textarea'
- Combobox.button
+ textarea

On 3.6.0a2 and 3.5.2rc1:

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FAIL: test_virtual_event (tkinter.test.test_ttk.test_widgets.ComboboxTest)
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Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/tkinter/test/test_ttk/test_widgets.py", line 455, in test_virtual_event
    self.assertTrue(success)
AssertionError: [] is not true

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