Running simultaneuos "FOR" loops

[inshu chauhan]

i have to implement the below line in one of my code:

for  p in sorted(segments.iterkeys()) and for k in
sorted(class_count.iterkeys()) and for j in sorted(pixel_count.iterkeys()):

Its giving me a syntax error which is obvious, but how can I make all three
for loop run simultaneously or any other way to do this simultaneous work
???
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