Why can't I change or reassign the values of variables in lists using a for loop (python)?

Question

If I have a list of numbers, and I want to increment them using a for loop, why isn\'t this working:

>>> list=[1,2,3,4,5]
>>> for num in l         


        

Answer 1

You can achieve this by indexing the array.

>>> list=[1,2,3,4,5]
>>> for i in range(len(list)): 
...  list[i]=list[i]+1

This will circumvent the referencing issue Lattyware spoke of.