Comparing None and ints
Xavier Ho
contact at xavierho.com
Tue Jan 17 01:47:39 EST 2012
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Tue Jan 17 01:47:39 EST 2012
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Hello, I discovered this strange property by accident: Python 2.7.2 (default, Nov 21 2011, 17:25:27) [GCC 4.6.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> None < 0 True >>> None == 0 False >>> None > 0 False >>> int(None) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: int() argument must be a string or a number, not 'NoneType' What was the rationale behind this design? Specifically, (None < 0) == Trueand(None == 0) == False ? Personally I would have expected an exception on all tests above. Cheers, Xav -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-list/attachments/20120117/ba41efde/attachment.html>
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