cython

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cpdef void unraisable() noexcept:
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    """
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    >>> unraisable()
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    here
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    """
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    print('here')
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    raise RuntimeError()
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cpdef void raisable() except *:
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    """
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    >>> raisable()
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    Traceback (most recent call last):
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    ...
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    RuntimeError
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    """
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    print('here')
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    raise RuntimeError()
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cdef class A:
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    """
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    >>> A().foo()
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    A
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    """
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    cpdef void foo(self):
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        print "A"
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cdef class B(A):
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    """
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    >>> B().foo()
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    B
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    """
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    cpdef void foo(self):
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        print "B"
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class C(B):
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    """
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    >>> C().foo()
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    C
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    """
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    def foo(self):
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        print "C"
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