pyexpression 0.1.0

boost.lambda like function generator

boost.lambda like function generator

Usage:

>>> from pyexpression import _1, _2, _3, if_
>>> _1 * 10
<pyexpression.expressions.FuncCall object at 0xb74db7cc>
>>> (_1 * 10)(5)
50
>>> (_1 * _2)(10, 10)
100
>>> map(_1[0], zip(range(10), range(10,20)))
>>> class Test(object):
...     def __init__(self):
...         self.x = 10
...
>>> (_1.x)(Test())
10
>>> x = if_(_1)[_2].else_[_3]
>>> x(True, 10, 20)
... 10
>>> x(False, 10, 20)
... 20