I checked my enviroment that LC_ALL is not set, if I set it than the code will success.
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FAIL: test_locale (__main__.FormatTest.test_locale)
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Traceback (most recent call last):
File "Lib/test/test_format.py", line 446, in test_locale
locale.setlocale(locale.LC_ALL, oldloc)
File "Lib/test/test_format.py", line 444, in test_locale
self.assertEqual(text.replace(sep, ''), '1234' + point + '5')
File "Lib/test/test_format.py", line 437, in test_locale
self.assertIn(sep, text)
AssertionError: ',' not found in '123456789'
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The following error message comes when running test_format.py
I checked my enviroment that LC_ALL is not set, if I set it than the code will success.