On 13 May, 15:47, Stefan Behnel <stefan...@behnel.de> wrote: > a, 13.05.2010 16:36: > > > this must be easy but its taken me a couple of hours already > > > i have > > > a=[2,3,3,4,5,6] > > > i want to know the indices where a==3 (ie 1 and 2) > > indices = [ i for i,item in enumerate(a) if item == 3 ] > > > then i want to reference these in a > > print [ a[i] for i in indices ] > > Stefan
thanks Stefan. very useful. I didn't get this from the python documentation! -- http://mail.python.org/mailman/listinfo/python-list
