[Numpy-discussion] Getting indices from numpy array with condition

Hi, Maybe this is not so clever, but I can't find it in the doc. I need to get all indices/index of all occurrences of a value in a numpy array As example: a = numpy.array([1,2,3],[4,5,6],[7,8,9]) I need to get the indice/index of all array elements where a[a>3] Any fast/easy way to write this ? Thanks for your help ;-) Cheers, Nicolas.