Append zeros to the end of a string

I have two strings I need to make equivalent length:

str1 ='AVFGHJK'
str2 ='ADF'

I need to append some 0s to the end of str2 so it becomes length equivalent to str1:

str1 ='AVFGHJK'
str2 ='ADF0000'

Output:

str2 ='ADF0000'

I have tried to use zfill, but it adds zeros to the beginning of the string, not the end.

>Solution :

Use str.ljust fo padding char

print("ABC".ljust(8, '0'))  # ABC00000

And str.rjust for leading char

print("ABC".rjust(8, '0'))  # 00000ABC