count letter and show in list

Question

I need to receive a string from the user, present it in list so each organ in the list contains [the letter, the number it repeat in a row].

I thought my code is goo

Answer 1

Simpler variant of Aswini's code:

string = raw_input("Enter a string:")
lis = []
for c in string:
    if len(lis) != 0 and lis[-1][0] == c:
        lis[-1][1] += 1
    else:
        lis.append([c, 1]) 

print lis