[Numpy-discussion] Find index of repeated numbers in array

Hi Everyone I think I'm missing something really obvious but what I would like to do is extract the indexes from an array where a number matches - For example data = [0,1,2,960,5,6,960,7] I would like to know, for example the indices which match 960 - i.e. it would return 3 and 6 I could do this with a loop but I was wondering if there was a built in numpy function to do this? BTW if anyone is interested I'm converting some idl code to numpy and trying to mmic the IDL function where Cheers Ross