removed 1st edition code

11-pythonic-obj/vector2d_v1.py

@@ -1,76 +0,0 @@
-"""
-A 2-dimensional vector class
-
-    >>> v1 = Vector2d(3, 4)
-    >>> print(v1.x, v1.y)
-    3.0 4.0
-    >>> x, y = v1
-    >>> x, y
-    (3.0, 4.0)
-    >>> v1
-    Vector2d(3.0, 4.0)
-    >>> v1_clone = eval(repr(v1))
-    >>> v1 == v1_clone
-    True
-    >>> print(v1)
-    (3.0, 4.0)
-    >>> octets = bytes(v1)
-    >>> octets
-    b'd\\x00\\x00\\x00\\x00\\x00\\x00\\x08@\\x00\\x00\\x00\\x00\\x00\\x00\\x10@'
-    >>> abs(v1)
-    5.0
-    >>> bool(v1), bool(Vector2d(0, 0))
-    (True, False)
-
-
-Test of ``.frombytes()`` class method:
-
-    >>> v1_clone = Vector2d.frombytes(bytes(v1))
-    >>> v1_clone
-    Vector2d(3.0, 4.0)
-    >>> v1 == v1_clone
-    True
-
-"""
-
-from array import array
-import math
-
-
-class Vector2d:
-    typecode = 'd'
-
-    def __init__(self, x, y):
-        self.x = float(x)
-        self.y = float(y)
-
-    def __iter__(self):
-        return (i for i in (self.x, self.y))
-
-    def __repr__(self):
-        class_name = type(self).__name__
-        return '{}({!r}, {!r})'.format(class_name, *self)
-
-    def __str__(self):
-        return str(tuple(self))
-
-    def __bytes__(self):
-        return (bytes([ord(self.typecode)]) +
-                bytes(array(self.typecode, self)))
-
-    def __eq__(self, other):
-        return tuple(self) == tuple(other)
-
-    def __abs__(self):
-        return math.hypot(self.x, self.y)
-
-    def __bool__(self):
-        return bool(abs(self))
-
-# BEGIN VECTOR2D_V1
-    @classmethod  # <1>
-    def frombytes(cls, octets):  # <2>
-        typecode = chr(octets[0])  # <3>
-        memv = memoryview(octets[1:]).cast(typecode)  # <4>
-        return cls(*memv)  # <5>
-# END VECTOR2D_V1