Interestingly changing:
                out_list.append(ll)

to

                out_list.append(list(ll))


seems to work. The part of my brain that understood why that is must have sleeping.

-k


On Aug 28, 2009, at 11:05 PM, i wrote:

Back to python after a long long layoff. So i am running into some beginner's confusion...

I am trying to plot a list of numbers in gnuplot.py. To do that I am trying to pack the list with an index by iterating over the list so i can get something like:

foo = [12, 11, 9, 6, 2, 9, 3, 8, 12, 3, 5, 6]

[ [1, 12], [2, 11], [3, 9], [4, 6], [5, 2], [6, 9], [7, 3], [8, 8] ... ]

So that i have x, y pairs to plot. When i print in my func i get the right thing, for each item (note scaffolding) yet when i reurn the whole list i just get the last pair repeated over and over.

I am not sure why this is.


def pack(in_seq):
        out_list=[]
        x = 1
        ll=[1, 1]
        for each in in_seq:
                ll[0] = x
                ll[1] = each
                out_list.append(ll)
                #print ll
                x = x + 1
        print out_list
                

# function declarations would go here
def test():
        """test function - say what this does here and skip a line
        
        Keyword arguments:
        none
        """

        print
        foo = minus(200)
        plot_me = pack(foo)
        #print foo
        print
        print plot_me
        

if __name__ == "__main__":
        test()



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