Turn off color via PY_COLORS=0

[starblue]

Please support a more standard way to turn off colors. It is tedious to turn off color for every tool separately, especially since with PY_COLORS there exists a general way for the Python ecosystem.

Even better would be to respect NO_COLOR=1, which IMHO is the closest thing to a general standard. General support for this would avoid playing whack-a-mole with every new tool that comes along.

Also, there are many valid reasons not to want colors on the command line, so calling the environment variable PIPENV_COLORBLIND is in rather bad taste.

[oz123]

I think this is a very good issue to work on. I also added this feature in the past to pip :-).
pypa/pip#4739

This will take quite some time to implement this here. Been talking with @matteius about removing all the usage of crayons and only using click.echo. If click.echo has a global way to disable color that would be easy!

[oz123]

In PIPENV the place for this would be:

pipenv/pipenv/environments.py

Line 101 in 891486e

PIPENV_COLORBLIND = bool(os.environ.get("PIPENV_COLORBLIND"))

[matteius]

tartley/colorama#268

[matteius]

I agree with a comment someone left somewhere else recently that the name PIPENV_COLORBLIND is in bad taste. It looks like colorama will maybe one day soon support a NO_COLOR environment variable ... that is what click uses, but only for Windows I think. Edit: Oh it was this thread, from the author @starblue

[oz123]

There is another way to disable colors in pipenv which we inherit from vistir.termcolors:

DISABLE_COLORS = os.getenv("CI", False) or os.getenv(
    "ANSI_COLORS_DISABLED", os.getenv("VISTIR_DISABLE_COLORS", False)
)