Class DoubleEq

Lib/test/test_functools.py:2018–2027

Demonstrate a reentrant lru_cache call within a single thread

            return x

        class DoubleEq:
            'Demonstrate a reentrant lru_cache call within a single thread'
            def __init__(self, x):
                self.x = x
            def __hash__(self):
                return self.x
            def __eq__(self, other):
                if self.x == 2:
                    test_func(DoubleEq(1))
                return self.x == other.x

        test_func(DoubleEq(1))                      # Load the cache
        test_func(DoubleEq(2))                      # Load the cache