Comment #41 on issue 1923 by nicolas....@gmail.com: count_ops doesn't
return a count (by default)
http://code.google.com/p/sympy/issues/detail?id=1923
Chris, trying to implement issue 2011, I found the following bug today:
In [6]: from sympy.physics.secondquant import BKet
In [7]: count_ops(BKet([n]))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/nicolas/Programmation/sympy/<ipython console> in <module>()
/home/nicolas/Programmation/sympy/sympy/core/function.pyc in
count_ops(expr, visual)
1085 while args:
1086 a = args.pop()
-> 1087 if a.is_Rational:
1088 #-1/3 = NEG + DIV
1089 if a is not S.One:
AttributeError: 'tuple' object has no attribute 'is_Rational'
This is because BKet arguments are not of type Expr:
In [8]: BKet([n]).args
Out[8]: ((n,),)
In [9]: type(BKet([n]).args[0])
Out[9]: <type 'tuple'>
I think it should be of type Tuple instead.
I tried to play a bit with sympy/physics/seconquant.py, but I have few
knowledge in physics, and I'm afraid of breaking things.
It would be great if you could have a look at this...
Alternatively, one may modify count_ops(), but I don't think its the proper
to way this.
--
You received this message because you are subscribed to the Google Groups
"sympy-patches" group.
To post to this group, send email to sympy-patches@googlegroups.com.
To unsubscribe from this group, send email to
sympy-patches+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/sympy-patches?hl=en.
