Comment #6 on issue 2114 by smichr: Mul.make_args(S.One) returns ()
http://code.google.com/p/sympy/issues/detail?id=2114
This is stalled...how can we come to a final decision on this? I'm writing
code to work around this and I would rather just have it one way or another.
I still think you should get args no matter what. e.g. let's say you want
to iterate through the terms of an Add and print the first argument of each:
current:
if not expr:
print S.Zero
else:
for a in Add.make_args(expr):
for m in Mul.make_args(a):
print m or S.One
proposed:
for a in Add.make_args(expr):
for m in Mul.make_args(a):
print m
It's just one extra little thing to bite you and clutter up the code if you
have to remember that make_args is not always going to give you something.
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