[docs] Problems with a unittest example and Python 3.3

Andrew Svetlov andrew.svetlov at gmail.com
Tue Oct 2 18:29:25 CEST 2012


It works for me. I use Python 3.3.

On Sun, Sep 30, 2012 at 11:04 AM, Pierazzo Mara
<info at trattoriaallascala.com> wrote:
> I tried the very first example I found on the Python documentation at this address: http://docs.python.org/py3k/library/unittest.html#module-unittest
>
>     import random
>     import unittest
>
>     class TestSequenceFunctions(unittest.TestCase):
>
>         def setUp(self):
>             self.seq = list(range(10))
>
>         def test_shuffle(self):
>             # make sure the shuffled sequence does not lose any elements
>             random.shuffle(self.seq)
>             self.seq.sort()
>             self.assertEqual(self.seq, list(range(10)))
>
>             # should raise an exception for an immutable sequence
>             self.assertRaises(TypeError, random.shuffle, (1,2,3))
>
>         def test_choice(self):
>             element = random.choice(self.seq)
>             self.assertTrue(element in self.seq)
>
>         def test_sample(self):
>             with self.assertRaises(ValueError):
>                 random.sample(self.seq, 20)
>             for element in random.sample(self.seq, 5):
>                 self.assertTrue(element in self.seq)
>
>     if __name__ == '__main__':
>         unittest.main()
>
>
> On Python 2.7.1 this example used to work, as I was getting back this result:
>
>
>> Ran 3 tests in 0.001s
>>
>> OK
>
>
> but when I run this code on Python 3.3 I'm getting this error:
>
>
>     Traceback (most recent call last):
>       File "/Users/[USERNAME]/Desktop/prova.py", line 29, in <module>
>         unittest.main()
>       File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/unittest/main.py", line 125, in __init__
>         self.runTests()
>       File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/unittest/main.py", line 263, in runTests
>         sys.exit(not self.result.wasSuccessful())
>     SystemExit: False
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-- 
Thanks,
Andrew Svetlov


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