Python | Count overlapping substring in a given string

string = "GeeksforGeeksforGeeksforGeeks"
print(string.count("GeeksforGeeks"))

def CountOccurrences(string, substring):
    # Initialize count and start to 0
    count = 0
    start = 0
    # Search through the string till
    # we reach the end of it
    while start < len(string):
        # Check if a substring is present from
        # 'start' position till the end
        pos = string.find(substring, start)
        if pos != -1:
            # If a substring is present, move 'start' to
            # the next position from start of the substring
            start = pos + 1
            # Increment the count
            count += 1
        else:
            # If no further substring is present
            break
    # return the value of count
    return count
# Driver Code
string = "GeeksforGeeksforGeeksforGeeks"
print(CountOccurrences(string, "GeeksforGeeks"))