On Friday, June 12, 2015 at 4:44:08 PM UTC-7, Terry Reedy wrote: > On 6/12/2015 4:34 PM, Laura Creighton wrote: > > The real problem is removing things from lists when you are iterating > > over them, not adding things to the end of lists. > > One needs to iterate backwards. > > >>> ints = [0, 1, 2, 2, 1, 4, 6, 5, 5] > > >>> for i in range(len(ints)-1, -1, -1): > if ints[i] % 2: > del ints[i] > > >>> ints > [0, 2, 2, 4, 6] > > But using a list comp and, if necessary, copying the result back into > the original list is much easier. > > >>> ints = [0, 1, 2, 2, 1, 4, 6, 5, 5] > >>> ints[:] = [i for i in ints if not i % 2] > >>> ints > [0, 2, 2, 4, 6] > > > -- > Terry Jan Reedy
On the second line of your final solution, is there any reason you're using `ints[:]` rather than just `ints`? -- https://mail.python.org/mailman/listinfo/python-list
