Oct 29, 2019
diff --git a/10-seq-hacking/vector_v4.py b/10-seq-hacking/vector_v4.py

    def __init__(self, components):
        self._components = array(self.typecode, components)
        self._hash = None

    def __iter__(self):
        return iter(self._components)
                bytes(self._components))

    def __eq__(self, other):
        return (len(self) == len(other) and
        return (hash(self) == hash(other) andlen(self) == len(other) and
                all(a == b for a, b in zip(self, other)))

    def __hash__(self):
        if self._hash:
            return self._hash

        hashes = (hash(x) for x in self)
        return functools.reduce(operator.xor, hashes, 0)
        self._hash = functools.reduce(operator.xor, hashes, 0)

        return self._hash

    def __abs__(self):
        return math.sqrt(sum(x * x for x in self))
Original file line number	Diff line number	Diff line change
Expand Up		@@ -160,6 +160,7 @@ class Vector:

		def __init__(self, components):
		self._components = array(self.typecode, components)
		self._hash = None

		def __iter__(self):
		return iter(self._components)
Expand All		@@ -177,12 +178,17 @@ def __bytes__(self):
		bytes(self._components))

		def __eq__(self, other):
		return (len(self) == len(other) and
		return (hash(self) == hash(other) andlen(self) == len(other) and
		all(a == b for a, b in zip(self, other)))

		def __hash__(self):
		if self._hash:
		return self._hash

		hashes = (hash(x) for x in self)
		return functools.reduce(operator.xor, hashes, 0)
		self._hash = functools.reduce(operator.xor, hashes, 0)

		return self._hash

		def __abs__(self):
		return math.sqrt(sum(x * x for x in self))
Expand Down