> Let's plan a cmdline argument then.

> Should we go for -L<level> much like -W<warning>?

Yeah, I think a command-line argument is much more reasonable, less likely to cause issues with other implementations of logging configuration, and more practically useful. I'd be +1 on something like a `-L<level>`.

On Thu, Feb 20, 2020 at 2:05 PM Bar Harel <bzvi7919@gmail.com> wrote:
Let's plan a cmdline argument then.

Should we go for -L<level> much like -W<warning>?
Or -x logging for setting a default value of debug or info?

Per python specification, -x is implementation dependent.

I'll advocate for -L. I think the same concerns as -W are relevant for all python implementations, and it gives more flexibility in terms of log level.

Next question: Should -x dev include it?
If it was python day-1, I would say yes. My issue is the double inclusion of stream handlers in case the logging was bootstrapped already.
So -x dev probably shouldn't include it.

On Thu, Feb 20, 2020, 8:28 PM Christopher Barker <pythonchb@gmail.com> wrote:
I think it’s a “Bad Idea” to use an environment variable — who knows what Python script may be running on a given system? 

But a standard command line argument to the interpreter could be useful.

-CHB

On Thu, Feb 20, 2020 at 8:51 AM Mike Miller <python-ideas@mgmiller.net> wrote:

On 2020-02-19 17:12, Bar Harel wrote:
> Another idea I've had that may be of use:
>
> PYTHONLOGGING environment variable.
>
> Setting PYTHONLOGGING to any log level or level name will initialize
> logging.basicConfig() with that appropriate level.
>
> Another option would be that -x dev or a different -x logging will initialize
> basic config.

As a heavy user of logging, I like this one a lot.  In a new project, the lack
of such a feature allows one to stick with print() perhaps longer than is prudent.

-Mike
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