[issue32043] Add a new -X dev option: "developer mode"

[STINNER Victor]

New submission from STINNER Victor <victor.stinner at gmail.com>:

I propose to add a new "developer mode": a new "-X dev" command line option.

In short:
   python3 -X dev script.py
behaves as:
   PYTHONMALLOC=debug python3 -W default -X faulthandler script.py

For the rationale, please see:
https://mail.python.org/pipermail/python-dev/2017-November/150514.html

----------
components: Interpreter Core
messages: 306330
nosy: haypo
priority: normal
severity: normal
status: open
title: Add a new -X dev option: "developer mode"
type: enhancement
versions: Python 3.7

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32043>
_______________________________________