What does HackerNews think of Pipe?

Python doesn't have a built-in pipe operator, but that doesn't mean you can't do it. The pipe [1] library is popular.

    is_even = where(lambda x: x % 2 == 0)
    sum(fib() | is_even | take_while(lambda x: x < 4000000)

The Apache Beam SDK for Python is another example. It has its own pipe expressions (|, >>, |>, etc.).

[1] https://github.com/JulienPalard/Pipe

I'm not sure if you are aware, but there are several efforts out there to give Python a more data-pipeline-friendly (composable pipe) syntax:

1) Coconut: http://coconut-lang.org/

2) https://github.com/JulienPalard/Pipe

3) Pandas also has a new dataframe pipe method. https://pandas.pydata.org/pandas-docs/stable/generated/panda...

I would look at those before rolling out a custom solution.

Also https://github.com/JulienPalard/Pipe

Though I think there are a few generator based libs like this. I think the style is called "flow programming"?

Does anyone know where "Collection Pipeline" comes from? Did Martin coin this term?

There's a Python lib that implements it: https://github.com/JulienPalard/Pipe

> Try to write "find . -name '.py' | xargs cat | wc -l" in other languages.

  import pipe\n  find(name='*.py') | xargs(cat) | wc().lines\n

\nThe implementation of the functions is left as an exercise for the reader, but the syntax is valid.

https://github.com/JulienPalard/Pipe