ciplazar / pypeline Goto Github PK

A toy implementation of the forward function application operator found in functional programming languages.

Expressions like

>>> result = pow(2, sum(map(lambda x: x+1, [1, 2, 3])))
>>> result
512

can instead be written in an easier to read format that allows you to visually follow the flow of data through the expression:

>>> pipe_result = p([1,2,3]) >> p(map, lambda x: x+1) >> p(sum) >> p(pow, 2)
>>> pipe_result
p(512)
>>> pipe_result == result
True

To get the actual computed value out of the pipe use the val attribute:

>>> pipe_result.val
512
>>> pipe_result.val == result
True

The module includes doctests. To run them:

python pypeline.py