Allow "-m json" instead of "-m json.tool"

[treyhunner]

Feature or enhancement

Proposal:

This is a feature proposal for allowing python3 -m json to work in addition to python -m json.tool and softly deprecating the use of python3 -m json.tool.

I made a branch to see what these changes might look like.

Here is a separate branch which issues a DeprecationWarning .
However, since json.tool will continue working that warning may cause more hassle for end users than is worthwhile.

I think the no-warning approach may be more sensible.

Has this already been discussed elsewhere?

I have already discussed this feature proposal on Discourse

Links to previous discussion of this feature:

Discussion in Ideas discuss thread

Linked PRs

• gh-122873: Allow "python3 -m json" to work #122884

[ncoghlan]

The "No warning" branch looks good to me (it would just need docs and News for me to approve a PR)

[Eclips4]

Hi @hugovk! Just a quick note: type-feature label doesn't require a version label: https://devguide.python.org/triage/labels/#type-labels

[hugovk]

The "No warning" branch looks good to me (it would just need docs and News for me to approve a PR)

Agreed.

And change this in Lib/json/tool.py?

 def main():
-    prog = 'python -m json.tool'
+    prog = 'python -m json'

@treyhunner Would you like to put together a PR?

[treyhunner]

I will put together a PR shortly. 👍

[rhettinger]

+1 from me

[hugovk]

PR is here: #122884