On Aug 27, 2010, at 4:53 AM, smichr wrote:

>>> from sympy.abc import *
>> 
>>> vs
>> 
>>> var('a b c d …')
> 
> But with the new polys it will just be
> 
> var('a:z')
> 
>> 
>>> Plus, I also like abc for doctests.
> 
> Me, too. In spirit of the OTIO (only type it once) I don't like typing
> a, b, c = symbols('abc').

Actually, for me, it's just because you have to import symbols first, so you 
have to do

from sympy import symbols
a, b, c = symbols('abc')

instead of 

from sympy.abc import a, b, c

And it makes a difference in a doctest.

Aaron Meurer

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