Python - How to change values in a list of lists?

Question

I have a list of lists, each list within the list contains 5 items, how do I change the values of the items in the list? I have tried the following:

    for [ite         


        

Answer 1

Changing the variables assigned in the for does not change the list. Here's a fairly readable way to do what you want:

execlist = [
    #itemnumber, ctype, x, y, delay
    [1, 2, 3, 4, 5],
    [6, 7, 8, 9, 10],
    [11, 12, 13, 14, 15],
]

mynumber, myctype, myx, myy, mydelay = 6, 100, 101, 102, 104

for i, sublist in enumerate(execlist):
   if sublist[0] == mynumber:
        execlist[i] = [mynumber, myctype, myx, myy, mydelay]

print execlist

Output:

[[1, 2, 3, 4, 5], [6, 100, 101, 102, 104], [11, 12, 13, 14, 15]]