cython

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a,b = 'a *','b *' # use non-interned strings
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def and2_assign(a,b):
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    """
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    >>> a,b = 'a *','b *' # use non-interned strings
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    >>> and2_assign(2,3) == (2 and 3)
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    True
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    >>> and2_assign('a', 'b') == ('a' and 'b')
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    True
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    >>> and2_assign(a, b) == (a and b)
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    True
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    """
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    c = a and b
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    return c
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def and2(a,b):
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    """
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    >>> and2(2,3) == (2 and 3)
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    True
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    >>> and2(0,2) == (0 and 2)
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    True
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    >>> and2('a', 'b') == ('a' and 'b')
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    True
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    >>> and2(a, b) == (a and b)
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    True
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    >>> and2('', 'b') == ('' and 'b')
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    True
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    >>> and2([], [1]) == ([] and [1])
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    True
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    >>> and2([], [a]) == ([] and [a])
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    True
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    """
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    return a and b
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def and3(a,b,c):
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    """
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    >>> and3(0,1,2) == (0 and 1 and 2)
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    True
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    >>> and3([],(),[1]) == ([] and () and [1])
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    True
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    """
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    d = a and b and c
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    return d
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def and2_no_result(a,b):
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    """
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    >>> and2_no_result(2,3)
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    >>> and2_no_result(0,2)
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    >>> and2_no_result('a','b')
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    >>> and2_no_result(a,b)
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    >>> a and b
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    'b *'
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    """
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    a and b
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def and2_literal():
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    """
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    >>> and2_literal()
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    5
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    """
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    return True and 5
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def c_int_results(int x):
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    """
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    >>> c_int_results(7)
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    (0, 0)
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    >>> c_int_results(5)
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    (1, 1)
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    """
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    cdef int expr1, expr2, r1, r2
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    expr1 = x == 5
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    expr2 = 1
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    r1 = expr1 and expr2
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    r2 = (x==5) and 1
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    return r1, r2
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