[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Erlend Egeberg Aasland]

Erlend Egeberg Aasland  added the comment:

> I wrote a whole new page for -X dev: 
> https://docs.python.org/dev/library/devmode.html#devmode

That's nice, but references for PYTHONFAULTHANDLER and PYTHONTRACEMALLOC are 
still missing. If you think the cross refs for -X dev and PYTHONDEVMODE 
clutters cmdline.html, I'll remove them from the PR.

Is it worth it adding https://docs.python.org/dev/library/devmode.html to 3.8 
and possibly 3.7 as well?

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[STINNER Victor]

STINNER Victor  added the comment:

> An exception to that is `-X dev`, which can also be triggered by the 
> PYTHONDEVMODE variable, but that isn't mentioned in the CLI doc.

I wrote a whole new page for -X dev: 
https://docs.python.org/dev/library/devmode.html#devmode

This page starts with:

"It can be enabled using the -X dev command line option or by setting the 
PYTHONDEVMODE environment variable to 1."

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Erlend Egeberg Aasland]

Change by Erlend Egeberg Aasland :


--
nosy: +erlendaasland
nosy_count: 9.0 -> 10.0
pull_requests: +18045
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/18685

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Erlend Egeberg Aasland]

Change by Erlend Egeberg Aasland :


Added file: https://bugs.python.org/file48927/0001-3.8-bpo-39712.patch

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Erlend Egeberg Aasland]

Change by Erlend Egeberg Aasland :


--
keywords: +patch
Added file: https://bugs.python.org/file48926/0001-bpo-39712.patch

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Erlend Egeberg Aasland]

Change by Erlend Egeberg Aasland :


Added file: https://bugs.python.org/file48928/0001-3.7-bpo-39712.patch

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan :


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nosy: +xtreak

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Rahul Kumaresan]

Rahul Kumaresan  added the comment:

I would like to work on this issue.
Can you please suggest me specifics that I should be considering before I 
update the doc with the suggested inclusions.

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nosy: +rahul-kumi

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[issue39712] Doc for `-X dev` option should mention PYTHONDEVMODE

[Antoine Pitrou]

New submission from Antoine Pitrou :

In the doc for `-X` options (https://docs.python.org/3/using/cmdline.html#id5), 
when an option can be triggered through an equivalent environment variable, 
that variable is mentioned.

An exception to that is `-X dev`, which can also be triggered by the 
PYTHONDEVMODE variable, but that isn't mentioned in the CLI doc.

Other missing environment variables in the CLI doc are PYTHONFAULTHANDLER and 
PYTHONTRACEMALLOC.

--
assignee: docs@python
components: Documentation
keywords: easy, newcomer friendly
messages: 362414
nosy: docs@python, eric.araujo, ezio.melotti, mdk, pitrou, vstinner, willingc
priority: normal
severity: normal
stage: needs patch
status: open
title: Doc for `-X dev` option should mention PYTHONDEVMODE
type: enhancement
versions: Python 3.7, Python 3.8, Python 3.9

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