AttributeError: module 'coloredlogs' has no attribute 'CAN_USE_BOLD_FONT'

[AbdulRahmanAlHamali]

Hello, thank you for this beautiful package :)

In version 14.0 we are facing this error:

AttributeError: module 'coloredlogs' has no attribute 'CAN_USE_BOLD_FONT'

Was this removed or something?

[roedoejet]

Yes, looks like it was removed here: 044402534c2dd02ff340df2950e485ce4999386c was there a reason for the removal? This is a breaking change in our code.

[xolox]

Hi both, thanks for the feedback and sorry for the breaking change. A couple of thoughts on this:

• The CAN_USE_BOLD_FONT variable was never intended to be used outside of coloredlogs.
• The fact that it was documented can be taken to imply that it was part of the public API, however to be honest I didn't put that much thought into it - I simply tend to document all code I write.
• Long after the first releases of coloredlogs were published, I picked up the habit of defining __all__ in the Python packages I publish, to avoid this ambiguity. Unfortunately it takes time to go back and retroactively add this to all my projects (I hadn't gotten to coloredlogs yet).
• Release 14.0 bumped the major version number because it contains these kinds of backwards incompatible changes (this is what major version numbers are for). If this is -understandably- too big a risk, pin the major version number (this is what requirements pinning is for).

About why CAN_USE_BOLD_FONT was removed:

• Previously colorama was the only way to get colors on Windows.
• Starting with coloredlogs 14.0 there's a (better) alternative that doesn't have the same quirks.
• Compensating for quirks in colorama was basically dealing with a "leaky abstraction" (edge case) and like most developers I'd rather have less than more edge cases in my code, so with the advent of Windows 10 native ANSI support I decided to remove the special handling of colorama.

[AbdulRahmanAlHamali]

Hi @xolox , thank you for your response. And yes, it makes sense since it is a major version change.

So to confirm that I understand correctly: CAN_USE_BOLD_FONT is not needed any more, because it will always be True?