Monochrome Rich traceback rendering w/ ConsoleRenderer(colors=False)

[funkyfuture]

Summary

As addressed in this SO question, exceptions are logged with colours when using the ConsoleRenderer with the default rich exception formatter even when the renderer was initialized w/ colors=False.

This patch selects monochrome output for that formatter when it's used as default.

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[funkyfuture]

if this is of interest for you, i could use some advice. the test i added executes unreliably within the tox environments locally. and i have no clue why.

[hynek]

on a brief look your conceptual problem seems to be that setting colors does nothing on ConsoleRenderer. It's only an argument to the constructor that sets up columns a certain way. You're also modifying a global shared object so it's to be expected that you get weird side-effects. You probably want to create something like default_exception_formatter_no_colors and use that if colors are False and exception_formatter is default_exception_formatter

[funkyfuture]

thanks for the hint! improperly fiddling w/ global objects was the cause.