Why is the test failing on Check iO?

  I would like to give some feedback about ...

From: http://www.checkio.org/mission/house-password/solve/

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My Code:

    def checkio(data):
        if type(data) == str:
            if len(data) < 10:
                return False
            
            u, l, d = 0, 0, 0
            for char in data:
                temp = ord(char)
                if 65 <= temp <= 90:
                    u += 1
                elif 97 <= temp <= 122:
                    l += 1
                else:
                    d += 1
                if u>=1 and l>=1 and d>=1:
                    return True
            return False
    
    
    if __name__ == '__main__':
        #These "asserts" using only for self-checking and not necessary for auto-testing
        assert checkio(u'A1213pokl') == False, "1st example"
        assert checkio(u'bAse730onE4') == True, "2nd example"
        assert checkio(u'asasasasasasasaas') == False, "3rd example"
        assert checkio(u'QWERTYqwerty') == False, "4th example"
        assert checkio(u'123456123456') == False, "5th example"
        assert checkio(u'QwErTy911poqqqq') == True, "6th example"