python string count occurrences code example

Example 1: count string python

#printing the number of characters in  a string
print(len("String you want to count"))

#counting characters in a variable
a = "some string"
print(len(a))

Example 2: count substring in string python

def count_substring(string,sub_string):
    l=len(sub_string)
    count=0
    for i in range(len(string)-len(sub_string)+1):
        if(string[i:i+len(sub_string)] == sub_string ):      
            count+=1
    return count