Python: iterate through string but need to know index of current character

I’m iterating through a string and need to perform certain actions if the index number of a given character equals a certain value. However I’m not sure of the best way of keeping track of the current index number during the iteration. For example I need code that broadly does the following:

def myfunc(word):
    for n in word:
        if n[index] = 0:
            do this
        elif n[index] = 4:
            do this
        else:
            do this

I just can’t seem to find any inbuilt counter or function that allows me to keep track of the current iteration index. I could add a counter in as variable and just +1 after each loop but this seems clunky and I would have thought Python would know the current iteration number of "n" and could report it back?

>Solution :

Two ways to do this. Iterate the index i between 0 and the len of the str:

for i in range(len(word)):
  c = word[i]

Or use python’s enumerate function to do both at once:

for i, c in enumerate(word):
  ...