GCK/ count occurences function

from random import randint

marks=[randint(0,10) for x in range(30) ]
msg="Hello Hello words Hello, everybody is fine ?"
shopping=["tomatoes", "bread", "chocolate", "caviar", "bread", "pizza", "bread"]

def count_occurences(occurence,list_of_stuff):
    count=0
    for item in list_of_stuff:
        if item==occurence:
            count+=1
    print("{} appears {} times in the list".format(occurence,count))
    return count



count_occurences(10,marks)
count_occurences("H",msg)
count_occurences("bread",shopping)