Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://mail.python.org/pipermail/python-dev/2012-April/118624.html below:

[Python-Dev] Change to yield-from implementation

• Previous message: [Python-Dev] Change to yield-from implementation
• Next message: [Python-Dev] [Python-checkins] cpython: #14533: if a test has no test_main, use loadTestsFromModule.
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

2012/4/9 Greg Ewing <greg.ewing at canterbury.ac.nz>:
> Mark Shannon wrote:
>
>> We have recently removed the f_yieldfrom field from the frame object.
>> (http://bugs.python.org/issue14230)
>
>
> Hey, wait a minute. Did anyone consider the performance effect
> of that change on deeply nested yield-froms?
>
> The way it was, a yield-from chain was traversed by a very
> tight C loop that found the end frame and resumed it directly.
> If I understand what you've done correctly, now it has to
> enter and execute a bytecode in every frame along the way.

I think correctness is more important that performance, though.



-- 
Regards,
Benjamin

• Previous message: [Python-Dev] Change to yield-from implementation
• Next message: [Python-Dev] [Python-checkins] cpython: #14533: if a test has no test_main, use loadTestsFromModule.
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4