Checkio: House Password

My solution for Checkio assignment House Password:

def checkio(data):
        returnValue = True
        if (len(data) < 10) or (re.search("[A-Z]", data) == None) or (re.search("[a-z]", data) == None) or (re.search("[0-9]", data)) == None:
            returnValue = False
        return returnValue;