[Python-Dev] Why don't range and xrange threat floats as floats?

L V somelauw at yahoo.com
Wed Nov 5 19:26:35 CET 2008


Why don't range and xrange threat floats as floats?
Is there any good reason range and xrange don't threat floats as floats but as integers?
When I enter float arguments in a range, the floats are treated as integers. (+ some warning)

This is how I think it should work:
>>>range(0, 1, 0.1)
[0.0, 0.10000000000000001, 0.20000000000000001, 0.29999999999999999, 0.40000000000000002, 0.5, 0.59999999999999998, 0.69999999999999996, 0.80000000000000004, 0.90000000000000002]

I got these results by:
>>>[x/10. for x in xrange(10)]

I'm not looking for alternatives, just for the reason that it works this way.



      
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