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

You could use enumerate():

for index, sublist in enumerate(execlist):
   if sublist[0] == mynumber:
       execlist[index][1] = myctype
       execlist[index][2] = myx
       execlist[index][3] = myy
       execlist[index][4] = mydelay
       # break

You can remove the # if execlist only contains at most one sublist whose first item can equal mynumber; otherwise, you'll cycle uselessly through the entire rest of the list.

And if the itemnumbers are in fact unique, you might be better off with a dictionary or at least an OrderedDict, depending on what else you intend to do with your data.