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- import keyword
- import unittest
- class Test_iskeyword(unittest.TestCase):
- def test_true_is_a_keyword(self):
- self.assertTrue(keyword.iskeyword('True'))
- def test_uppercase_true_is_not_a_keyword(self):
- self.assertFalse(keyword.iskeyword('TRUE'))
- def test_none_value_is_not_a_keyword(self):
- self.assertFalse(keyword.iskeyword(None))
- # This is probably an accident of the current implementation, but should be
- # preserved for backward compatibility.
- def test_changing_the_kwlist_does_not_affect_iskeyword(self):
- oldlist = keyword.kwlist
- self.addCleanup(setattr, keyword, 'kwlist', oldlist)
- keyword.kwlist = ['its', 'all', 'eggs', 'beans', 'and', 'a', 'slice']
- self.assertFalse(keyword.iskeyword('eggs'))
- def test_all_keywords_fail_to_be_used_as_names(self):
- for key in keyword.kwlist:
- with self.assertRaises(SyntaxError):
- exec(f"{key} = 42")
- def test_async_and_await_are_keywords(self):
- self.assertIn("async", keyword.kwlist)
- self.assertIn("await", keyword.kwlist)
- def test_keywords_are_sorted(self):
- self.assertListEqual(sorted(keyword.kwlist), keyword.kwlist)
- if __name__ == "__main__":
- unittest.main()
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