File: complex_dunder.py

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# test __complex__ function support


class TestFloat:
    def __float__(self):
        return 1.0


class TestComplex:
    def __complex__(self):
        return 1j + 10


class TestStrComplex:
    def __complex__(self):
        return "a"


class TestNonComplex:
    def __complex__(self):
        return 6


class Test:
    pass


print(complex(TestFloat()))
print(complex(TestComplex()))

try:
    print(complex(TestStrComplex()))
except TypeError:
    print("TypeError")


try:
    print(complex(TestNonComplex()))
except TypeError:
    print("TypeError")


try:
    print(complex(Test()))
except TypeError:
    print("TypeError")