but it might be useful to do a pythonImportsCheck = [ "lazr.package" ];

I've added it tolazr.restfulclient. I tried to add to lazr.uri, but it fails; I'm not sure why.

i would do:

$nix-shell ./nixpkgs/default.nix -A python3Packages.lazr-restfulclient
[nixshell] $ python
>>> import lazr
>>> lazr

it should show you the file it imported (if there is one), this file will need to be removed for the pep420 namespacing to work correctly

it will say something like <namespace> if it loaded correctly

after more investigating, it's because #80595 hasn't found it's way into master yet

The pythonImportsCheck phase will run before setuptoolsCheckPhase, which means that the PWD will be set to $out, thus setup.py will not be present

for now, I would just do the pythonImportsCheck on expressions that you're not testing. Eventually we will be able to do tests + pythonImportsCheck

Updated. Thank you for explain it

@GrahamcOfBorg build breezy

@marsam Thank you!