pythonic way to get index,column for value == 1

I currently have a MxN dataframe which contains a solution to an optimization problem. "Active" i,j for i in {M} and j in {N} pairs are represented by 1 and "inactive" pairs by 0. I need to determine i,j values for all active cells, hopefully avoiding a for loop over index or columns.

This would be an example:

In [73]: sol_dfOut[73]:    1    2    3   4   51   0    0    1   0   02   1    0    0   0   03   0    1    0   0   04   0    0    0   0   0 

In this case, what I would require is a list of pairs (tuples would do):

[(1,3), (2,1), (3,2)]

Is there a way?

Thanks!

A.

EDIT: explanation was unclearEDIT2: my explanation was still unclear