class_call.py 241 Bytes
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class C1:
    def __call__(self, val):
        print('call', val)
        return 'item'

class C2:

    def __getattr__(self, k):
        pass

c1 = C1()
print(c1(1))

c2 = C2()
try:
    print(c2(1))
except TypeError:
    print("TypeError")