ModuleNotFoundError: No module named 'rpds.rpds'

[salahaz]

The following issue is raised when importing jsonschema from the latest release of v.4.19.1. I used to work with v4.17.0 and there were no issues. Any fix ?

[Julian]

Please share something which reproduces, as everything works fine here.

[amirbtb]

Hi, I have the same error.
Here is my environment :

• AWS Lambda with Python 3.9 runtime, x86_64 Architecture
• jsonschema==4.19.1
• rdps-py==0.10.4
  I got this error with a simple import :

from jsonschema import validators
from jsonschema import Draft4Validator

[Julian]

Lambda isn't a supported environment inasmuch as it isn't something that runs in CI here, and I don't personally have access or test on it. Everything may work there (and it seems likely it does, given I know many users do use it) but I don't directly support it even at the level that I provide support at all. Please provide some reproducer that doesn't involve it -- something that I can run which produces the behavior you're indicating.

[amirbtb]

According to this stackoverflow, the issue appeared with 4.18 : https://stackoverflow.com/questions/76667202/aws-lambda-function-cant-find-module.
I'll try setting up a Dockerfile with everything required to test this use case.

[Julian]

rpds as a dependency was introduced in 4.18, so that's not surprising. Feel free to follow up if you have a reproducer. Going to close for now, as I don't believe anything is wrong with the package itself, I suspect it's Lambda doing wrong things on installation, but if that turns out to not be the case happy to look into things with the reproducer.

[CynanX]

I am seeing this also when using AWS ZIP lambdas or AWS sam local. AWS Docker lambdas are working fine.

I can knock together a project demonstrating this using AWS sam local if that helps?

[milahu]

in my case, this error is caused by a mismatch of python versions
the main program is executed by python3.11

$ head -n1 /nix/store/flxxflpq0fbyjv4408nzybgs54wl518b-gns3-gui-2.2.47/bin/..gns3-wrapped-wrapped
#!/nix/store/30dxq7znh2rgb9n0nvdjhqw0qrfv99fq-python3-3.11.9/bin/python3.11

but rpds-py was compiled for python3.12

$ ls /nix/store/g1b4rcyviv5xldngyhyf0y3sphad50g0-python3.12-rpds-py-0.18.1/lib/python3.12/site-packages/rpds/
__init__.py
__init__.pyi
__pycache__
py.typed
rpds.cpython-312-x86_64-linux-gnu.so

so the python3.11 tries to import rpds.cpython-311-x86_64-linux-gnu.so
but that file is missing, hence the ModuleNotFoundError

why two different python versions

blame nixpkgs/pkgs/applications/networking/gns3/default.nix

  mkGui = args: callPackage (import ./gui.nix (args)) {
    inherit (libsForQt5) wrapQtAppsHook;
    python3Packages = python311Packages;
  };

python3Packages is pinned to version 3.11
but the default python3 version in nixpkgs is 3.12
so other dependencies use python3.12

ping nixpkgs gns3 maintainer @anthonyroussel
the fix is as simple as to remove
python3Packages = python311Packages;
which was added in NixOS/nixpkgs@d203ca9
fixed in milahu/nur-packages@96e66f8