howto handle nested for

[Peter Pearson]

On Fri, 28 Sep 2012 09:49:36 -0600, Ian Kelly <ian.g.kelly at gmail.com> wrote:
>
> levels = 6
> for combination in itertools.product(xrange(n_syms), levels):
>     # do stuff

>>> n_syms = 3
>>> levels = 6
>>> for combination in itertools.product(xrange(n_syms), levels):
...   print combination
... 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable


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