FM / classes

/usr/lib64/python2.7/Demo/classes

Name	Size	Mode	Actions
bitvec.py	10495	0644	edit dl rm
bitvec.pyc	10293	0644	edit dl rm
bitvec.pyo	10293	0644	edit dl rm
Complex.py	9954	0644	edit dl rm
Complex.pyc	10022	0644	edit dl rm
Complex.pyo	10022	0644	edit dl rm
Dates.py	7821	0644	edit dl rm
Dates.pyc	7334	0644	edit dl rm
Dates.pyo	7334	0644	edit dl rm
Dbm.py	1574	0644	edit dl rm
Dbm.pyc	2520	0644	edit dl rm
Dbm.pyo	2520	0644	edit dl rm
Range.py	3126	0644	edit dl rm
Range.pyc	4091	0644	edit dl rm
Range.pyo	4091	0644	edit dl rm
README	522	0644	edit dl rm
Rev.py	2052	0644	edit dl rm
Rev.pyc	2865	0644	edit dl rm
Rev.pyo	2865	0644	edit dl rm
Vec.py	1357	0644	edit dl rm
Vec.pyc	2820	0644	edit dl rm
Vec.pyo	2820	0644	edit dl rm

Edit: /usr/lib64/python2.7/Demo/classes/Vec.py (1357B)

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({0})'.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()

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({0})'.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()