mod, modulo and % under 2.4 and 2.5
Steven D'Aprano
steve at REMOVE-THIS-cybersource.com.au
Thu Dec 31 22:06:20 EST 2009
On Fri, 01 Jan 2010 13:48:28 +1100, Ben Finney wrote:
> "W. eWatson" <wolftracks at invalid.com> writes:
>
>> Steven D'Aprano wrote:
>> > NameError: name 'mod' is not defined
>
>> So where is it? Here are the choices. import sys, os, glob
>> import string
>> from numpy import *
>
> If you use ‘from foo import *’ you forfeit any way of saying where a
> name in your code gets bound.
Not quite:
>>> from math import *
>>> sin.__module__
'math'
But this only works with functions and classes, not arbitrary objects:
>>> pi.__module__
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'float' object has no attribute '__module__'
> Hence, don't do that.
Avoiding "from module import *" is generally excellent advice. There's
one or two exceptions, but if you have to ask what they are, you don't
need to know *wink*
--
Steven
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