fun exercise from programming praxis

balanced.py

def balanced(s):
    raise NotImplementedError("Implement me!")


def test():
    for s in ["{}", "[]", "()", "a(b)c", "abc[d]", "a(b)c{d[e]}"]:
        assert balanced(s)
    for s in ["{]", "(]", "a(b]c", "abc[d}", "a(b)c{d[e}"]:
        assert not balanced(s)
        
if __name__ == "__main__":
    test()