From 6f5789c8068cd10637f7f4541e9503df8686d692 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jure=20=C5=A0orn?= Date: Mon, 29 Jul 2019 04:19:01 +0200 Subject: [PATCH] Coroutine --- README.md | 8 ++++---- index.html | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/README.md b/README.md index fe67e9a..3c178a4 100644 --- a/README.md +++ b/README.md @@ -2145,14 +2145,14 @@ ValueError: malformed node or string Coroutine --------- -* **Similar to generator, but generator pulls data through the pipe with iteration, while coroutine pushes data into the pipeline with send().** +* **Any function that contains a `'(yield)'` expression returns a coroutine.** +* **Coroutines are similar to iterators, but data needs to be pulled out of an iterator by calling `'next()'`, while we push data into the coroutine by calling `'.send()'`.** * **Coroutines provide more powerful data routing possibilities than iterators.** -* **If you build a collection of simple data processing components, you can glue them together into complex arrangements of pipes, branches, merging, etc.** ### Helper Decorator -* **All coroutines must be "primed" by first calling next().** +* **All coroutines must first be "primed" by calling `'next()'`.** * **Remembering to call next() is easy to forget.** -* **Solved by wrapping coroutines with a decorator:** +* **Solved by wrapping functions that return a coroutine with a decorator:** ```python def coroutine(func): diff --git a/index.html b/index.html index 57d44b7..07020f5 100644 --- a/index.html +++ b/index.html @@ -1858,13 +1858,13 @@ ValueError: malformed node or string

#Coroutine

    -
  • Similar to generator, but generator pulls data through the pipe with iteration, while coroutine pushes data into the pipeline with send().
    • +
  • Any function that contains a '(yield)' expression returns a coroutine.
    • +
  • Coroutines are similar to iterators, but data needs to be pulled out of an iterator by calling 'next(<iter>)', while we push data into the coroutine by calling '<coroutine>.send(<el>)'.
  • Coroutines provide more powerful data routing possibilities than iterators.
    • -
  • If you build a collection of simple data processing components, you can glue them together into complex arrangements of pipes, branches, merging, etc.

Helper Decorator

    -
  • All coroutines must be "primed" by first calling next().
    • +
  • All coroutines must first be "primed" by calling 'next(<coroutine>)'.
  • Remembering to call next() is easy to forget.
    • -
  • Solved by wrapping coroutines with a decorator:
    • +
  • Solved by wrapping functions that return a coroutine with a decorator:
def coroutine(func):
     def out(*args, **kwargs):
         cr = func(*args, **kwargs)