Class itemgetter

dask/utils.py:1243–1258

Variant of operator.itemgetter that supports equality tests

class itemgetter:
    """Variant of operator.itemgetter that supports equality tests"""

    __slots__ = ("index",)

    def __init__(self, index):
        self.index = index

    def __call__(self, x):
        return x[self.index]

    def __reduce__(self):
        return (itemgetter, (self.index,))

    def __eq__(self, other):
        return type(self) is type(other) and self.index == other.index


class MethodCache: