Why not use | as the pipe operator? Just use __or__ instead of __add__

I have done something similar too once in a shell-like Python CLI I worked on. Can also use __ror__ to be able to pass primitives into your commands like `[1, 2, 3] | SumCmd() | PrintCmd()`

I do agree that typing something like that, especially when working in a shell, is much nicer than having to go back and forth all the time to type `print(sum([1,2,3]))`

Here it is mentioned in a talk about Python Aesthetics by Brandon Rhodes: https://www.youtube.com/watch?v=x-kB2o8sd5c&t=8m24s

Doesn’t python have channels? The pipe is essentially a channel combined with a close message (a null object I guess) Otherwise you can do something similar with iterators and function composition. I guess the syntax isn’t quite as easy to read if you’re not used to function composition?(which seems surprisingly difficult for some beginners)

Tried python-sh?

One thing I like Ruby for over Python is the function chaining, which is quite shell-pipe-ish.

I'll stick to Python, but Ruby is worth a look.

Plumbum (above) matches this need in Python. It overloads | to make pipes! It makes it relatively trivial to express shell idioms in Python.