Python in terminal - syntax highlighting ruins useability

[urbrato]

Bug report

Bug description:

Since Python 3.14.6, maybe earlier, using "py" in Windows console causes python syntax highlighting. It uses almost all of standard 16 minimum-minimorum colors, so "py" command console mode becames totally unusable in any of the window background color. Exemple gratia, "def" shows with navy font color, almost invisible on black screen, however function name after def shows with white font color, surely invisible on white screen. So, console mode is totally ruined. Attempt to get rid of this contrenhancement using PYTHONNOCOLOR environment variable has no effect.

CPython versions tested on:

3.14

Operating systems tested on:

Windows

[hugovk]

Please can you share some screenshots?

I'm not sure where PYTHONNOCOLOR comes from, but Python itself doesn't use it.

Instead, use one of:

PYTHON_COLORS=0
NO_COLOR=1
TERM=dumb

See https://docs.python.org/3/using/cmdline.html#using-on-controlling-color

[urbrato]

Screenshot

PYTHON_COLORS=0 solves the problem, thank you so much!
Can it become more findable on the Python download page or FAQ?

[ericvsmith]

It should probably be a FAQ entry. But as long as you're here @urbrato: would you have found it on the FAQ? Where else did you look, if anywhere? I'm trying to find some place that people tend to look for such things, so we can maximize how helpful the documentation is. Thanks for any feedback!

[StanFromIreland]

Note that it is already documented in several places across the documentation, for example in Command line and environment: Controlling Color.

[urbrato]

Thank you so much, it's my fault then. I'll try to be more attentive.