[Python-Dev] PEP 554 v3 (new interpreters module) (original) (raw)

MRAB python at mrabarnett.plus.com
Sat Sep 23 10:32:58 EDT 2017

On 2017-09-23 10:45, Antoine Pitrou wrote:

Hi Eric, On Fri, 22 Sep 2017 19:09:01 -0600 Eric Snow <ericsnowcurrently at gmail.com> wrote:

Please elaborate. I'm interested in understanding what you mean here. Do you have some subinterpreter-based concurrency improvements in mind? What aspect of CSP is the PEP following too faithfully? See below the discussion of blocking send()s :-) As to "runninginterpreters()" and "idleinterpreters()", I'm not sure what the benefit would be. You can compose either list manually with a simple comprehension: [interp for interp in interpreters.listall() if interp.isrunning()] [interp for interp in interpreters.listall() if not interp.isrunning()] There is a inherit race condition in doing that, at least if interpreters are running in multiple threads (which I assume is going to be the overly dominant usage model). That is why I'm proposing all three variants. An alternative to 3 variants would be:

 interpreters.list_all(running=True)

 interpreters.list_all(running=False)

 interpreters.list_all(running=None)

[snip]

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