[Python-Dev] Add a developer mode to Python: -X dev command line option (original) (raw)

Victor Stinner victor.stinner at gmail.com
Wed Nov 15 21:57:49 EST 2017

Hi,

Since Brett and Nick like the idea and nobody complained against it, I implemented the -X dev option: https://bugs.python.org/issue32043 (Right now, it's a pull request.)

I removed the -b option.

Victor

2017-11-14 3:57 GMT+01:00 Nick Coghlan <ncoghlan at gmail.com>:

On 14 November 2017 at 02:08, Victor Stinner <victor.stinner at gmail.com> wrote:

My "-X dev" idea is not incompatible with Nick's PEP 565 "Show DeprecationWarning in main" and it's different: it's an opt-in option, while Nick wants to change the default behaviour. I'm +1 on a -X dev mode, since it enables a lot of things that are useful for making an application more robust (extension module debugging, explicit scope-controlled resource management) that I wouldn't want turned at the REPL by default. It also implicitly adjusts over time as we add more debugging capabilities. I don't consider it a replacement for tweaking how we handle DeprecationWarning by default, though :) Cheers, Nick. -- Nick Coghlan | ncoghlan at gmail.com | Brisbane, Australia

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