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authorGeorg Brandl <georg@python.org>2010-12-30 21:33:07 (GMT)
committerGeorg Brandl <georg@python.org>2010-12-30 21:33:07 (GMT)
commit7fafbc95c0c963438197c9a43fe893c4ea6fe759 (patch)
tree5c9ceda4bdc5260236a230554b9ed56b8c0cdbd3 /Demo/classes/Vec.py
parent6f17e2df29a865a29447531e89fb22be710e382d (diff)
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More cleanup: Move some demos into a dedicated Tools/demo dir, move 2to3 demo to Tools, and remove all the other Demo content.
Diffstat (limited to 'Demo/classes/Vec.py')
-rw-r--r--Demo/classes/Vec.py68
1 files changed, 0 insertions, 68 deletions
diff --git a/Demo/classes/Vec.py b/Demo/classes/Vec.py
deleted file mode 100644
index 787af69..0000000
--- a/Demo/classes/Vec.py
+++ /dev/null
@@ -1,68 +0,0 @@
-class Vec:
- """ A simple vector class
-
- Instances of the Vec class can be constructed from numbers
-
- >>> a = Vec(1, 2, 3)
- >>> b = Vec(3, 2, 1)
-
- added
- >>> a + b
- Vec(4, 4, 4)
-
- subtracted
- >>> a - b
- Vec(-2, 0, 2)
-
- and multiplied by a scalar on the left
- >>> 3.0 * a
- Vec(3.0, 6.0, 9.0)
-
- or on the right
- >>> a * 3.0
- Vec(3.0, 6.0, 9.0)
- """
- def __init__(self, *v):
- self.v = list(v)
-
- @classmethod
- def fromlist(cls, v):
- if not isinstance(v, list):
- raise TypeError
- inst = cls()
- inst.v = v
- return inst
-
- def __repr__(self):
- args = ', '.join(repr(x) for x in self.v)
- return 'Vec({})'.format(args)
-
- def __len__(self):
- return len(self.v)
-
- def __getitem__(self, i):
- return self.v[i]
-
- def __add__(self, other):
- # Element-wise addition
- v = [x + y for x, y in zip(self.v, other.v)]
- return Vec.fromlist(v)
-
- def __sub__(self, other):
- # Element-wise subtraction
- v = [x - y for x, y in zip(self.v, other.v)]
- return Vec.fromlist(v)
-
- def __mul__(self, scalar):
- # Multiply by scalar
- v = [x * scalar for x in self.v]
- return Vec.fromlist(v)
-
- __rmul__ = __mul__
-
-
-def test():
- import doctest
- doctest.testmod()
-
-test()