#19593: Add flushing of stdout and stderr for the `manage.py runserver`
management
command
-------------------------------------+-------------------------------------
Reporter: chroto24@… | Owner: nobody
Type: New feature | Status: closed
Component: Core (Management | Version: master
commands) | Resolution: wontfix
Severity: Normal | Triage Stage: Accepted
Keywords: | Needs documentation: 0
Has patch: 1 | Patch needs improvement: 0
Needs tests: 0 | UI/UX: 0
Easy pickings: 0 |
-------------------------------------+-------------------------------------
Comment (by lemuelf):
Replying to [comment:1 akaariai]:
> I am going to wontfix this - you can open the subprocess with 'python
-u' if needed which should give the semantics wanted.
Hi, akaariai.
Just a note: (a long one :-)
If I do:
{{{
$ python -u manage.py runserver
}}}
it spawns child python processes without the -u switch:
{{{
$ pgrep -fl python
11968 python -u manage.py runserver
11972 /Users/lemuelf/.virtualenvs/online_store/bin/python manage.py
runserver
}}}
And if I try to directly run the child-most process, e.g.:
{{{
$ /Users/lemuelf/.virtualenvs/online_store/bin/python -u manage.py
runserver
}}}
it still spawns a child python process without the -u switch:
{{{
$ pgrep -fL python
10390 /Users/lemuelf/.virtualenvs/online_store/bin/python -u manage.py
runserver
10393 /Users/lemuelf/.virtualenvs/online_store/bin/python manage.py
runserver
}}}
However, I find that setting the PYTHONUNBUFFERED env var works, like the
following:
{{{
$ PYTHONUNBUFFERED=1 python manage.py runserver
}}}
Still wontfix? PYTHONUNBUFFERED=1 is too unwieldy :-)
--
Ticket URL: <https://code.djangoproject.com/ticket/19593#comment:3>
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