Changing Arcpy Message-Warning-Error Text Colors

Question

I recently came across a post about changing "the default error color in python" and was interested in doing something similar with Arcpy's AddMessage, AddWarning, and/or AddError functions. A few older posts like arcpy.AddMessage Formatting were made on Esri's site claiming that it's not possible, though they are quite a bit old.

Has there been any updates or workaround solutions?

I would assume that the message functions have some sort of html text coloring schema that they are following and are pulled from some file. Not sure if that comes from another python library, an OS setting, something Esri specifically built, etc.

If in fact AddMessage, AddWarning, AddError text color cannot be changed, would it be feasible to write a custom function or class that would be able to do this or is this a foundational issue with the processing dialog box?

Using ArcPy Pro.

Answer 1

It depends on where you want to see colors, in a text editor, in the console, in ArcGIS desktop?

Some text editors support coloring based on text content, either native or with a plugin.

For consoles that support Ansi escape sequences, you could use those in the output. For instance, arcpy.AddMessage("\u001B[31mRed\u001B[0m") will output text in red.