Pylance/Pyright can't resolve termcolor module in untrusted mode

[dschulman-repay]

Pylance throws Import "termcolor" could not be resolved Pylance(reportMissingImports) in response to from termcolor import cprint, using the Python 3.11.4 interpreter. However, the code works fine under both Windows 10 and Ubuntu Linux 23.04, and termcolor is a perfectly valid module, as far as I know (currently at v. 2.3.0).

Any idea why the lookup is failing? I note that pip has no trouble resolving it...

[StellaHuang95]

I couldn't repro it, did you select your interpreter to the environment you installed the termcolor in?

Please also add the output window logs, see https://github.com/microsoft/pylance-release/blob/main/TROUBLESHOOTING.md#filing-an-issue. Thanks!

[dschulman-repay]

I found the problem.

It's weird, but Pylance resolved the above import once I trusted the workspace containing my Python script; it could not do this in Restricted mode.

I don't understand this behavior.

[heejaechang]

The builtin libraries for Python are always found.

any libraries that we have bundled stubs will be always found. but not ones we don't bundle with untrusted workspace since we don't trust anything else except we ship.

[rchiodo]

This is because the workspace has to be trusted in order for us to get the sys.paths (we run your python interpreter in the background).

I wonder if we could try and default the sys paths when the workspace isn't trusted based on say the path to the python executable.

[dschulman-repay]

OK, but what's really puzzling was that the import Pylance couldn't resolve in Restricted mode was only one of three in my script: it also imported from argparse and platform, but didn't complain about either of those.

Is this because argparse and platform are Python builtins, while termcolor is an external PyPi module?

[rchiodo]

Is this because argparse and platform are Python builtins, while termcolor is an external PyPi module?

Yep that's exactly why. The builtin libraries for Python are always found.

[debonte]

Moving this issue to discussion as an enhancement request for comments and upvotes.