Python code coverage for Tools/demo/vector.py

#	count	content
1	n/a	#!/usr/bin/env python3
2	n/a
3	n/a	"""
4	n/a	A demonstration of classes and their special methods in Python.
5	n/a	"""
6	n/a
7	n/a	class Vec:
8	n/a	"""A simple vector class.
9	n/a
10	n/a	Instances of the Vec class can be constructed from numbers
11	n/a
12	n/a	>>> a = Vec(1, 2, 3)
13	n/a	>>> b = Vec(3, 2, 1)
14	n/a
15	n/a	added
16	n/a	>>> a + b
17	n/a	Vec(4, 4, 4)
18	n/a
19	n/a	subtracted
20	n/a	>>> a - b
21	n/a	Vec(-2, 0, 2)
22	n/a
23	n/a	and multiplied by a scalar on the left
24	n/a	>>> 3.0 * a
25	n/a	Vec(3.0, 6.0, 9.0)
26	n/a
27	n/a	or on the right
28	n/a	>>> a * 3.0
29	n/a	Vec(3.0, 6.0, 9.0)
30	n/a	"""
31	n/a	def __init__(self, *v):
32	n/a	self.v = list(v)
33	n/a
34	n/a	@classmethod
35	n/a	def fromlist(cls, v):
36	n/a	if not isinstance(v, list):
37	n/a	raise TypeError
38	n/a	inst = cls()
39	n/a	inst.v = v
40	n/a	return inst
41	n/a
42	n/a	def __repr__(self):
43	n/a	args = ', '.join(repr(x) for x in self.v)
44	n/a	return 'Vec({})'.format(args)
45	n/a
46	n/a	def __len__(self):
47	n/a	return len(self.v)
48	n/a
49	n/a	def __getitem__(self, i):
50	n/a	return self.v[i]
51	n/a
52	n/a	def __add__(self, other):
53	n/a	# Element-wise addition
54	n/a	v = [x + y for x, y in zip(self.v, other.v)]
55	n/a	return Vec.fromlist(v)
56	n/a
57	n/a	def __sub__(self, other):
58	n/a	# Element-wise subtraction
59	n/a	v = [x - y for x, y in zip(self.v, other.v)]
60	n/a	return Vec.fromlist(v)
61	n/a
62	n/a	def __mul__(self, scalar):
63	n/a	# Multiply by scalar
64	n/a	v = [x * scalar for x in self.v]
65	n/a	return Vec.fromlist(v)
66	n/a
67	n/a	__rmul__ = __mul__
68	n/a
69	n/a
70	n/a	def test():
71	n/a	import doctest
72	n/a	doctest.testmod()
73	n/a
74	n/a	test()