def fizz_count(x):
    counter = 0
    for count in x:
        if ("fizz" in count) and type(count) != int:
            counter = counter + 1
    return counter
z = ["fizz","buzz","fizz"]
print fizz_count(z)

"fizz" in count

"fizz" in 23

"fizz" == count

def fizz_count(x):
    return len([s for s in x if "fizz" in str(s)])
z = ["fizz", "buzz", "fizz", 1, 23, "fizzizz"]
print fizz_count(z)

>>> z = ["fizz","buzz","fizz"]
>>> z.count("fizz")
0: 2