Issue 47222: subprocess.Popen() should allow capturing output and sending it to stdout and stderr

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This issue has been migrated to GitHub: https://github.com/python/cpython/issues/91378

classification

Title:	subprocess.Popen() should allow capturing output and sending it to stdout and stderr
Type:	enhancement	Stage:	patch review
Components:	Library (Lib)	Versions:	Python 3.11

process

Status:	open	Resolution:
Dependencies:		Superseder:
Assigned To:		Nosy List:	gregory.p.smith, pprindeville
Priority:	normal	Keywords:	patch

Created on 2022-04-04 22:52 by pprindeville, last changed 2022-04-11 14:59 by admin.

Pull Requests
URL	Status	Linked	Edit
PR 32344	open	pprindeville, 2022-04-05 21:08

Messages (1)
msg416703 - (view)	Author: Philip Prindeville (pprindeville) *	Date: 2022-04-04 22:52
I'd like to see handlers exposes for the stdout and stderr pipe-reading threads so that I could customize what's done with the data as it's read. I might, for instance, want to: (1) accumulate it into a buffer; (2) copy it onto sys.stdout or sys.stderr, respectively; (3) send it to a logging object; or some combination of the above, possibly all of them.

msg416703 - (view)

Author: Philip Prindeville (pprindeville) *

Date: 2022-04-04 22:52

I'd like to see handlers exposes for the stdout and stderr pipe-reading threads so that I could customize what's done with the data as it's read.

I might, for instance, want to:

(1) accumulate it into a buffer;
(2) copy it onto sys.stdout or sys.stderr, respectively;
(3) send it to a logging object;

or some combination of the above, possibly all of them.

History
Date	User	Action	Args
2022-04-11 14:59:58	admin	set	github: 91378
2022-04-05 21:08:52	pprindeville	set	keywords: + patch stage: patch review pull_requests: + pull_request30398
2022-04-05 01:49:10	ned.deily	set	nosy: + gregory.p.smith
2022-04-04 22:52:49	pprindeville	create