[CLI] `ImportError: cannot import name '_get_mock_module' from 'pytest_mock'`

Description The pytest test suite fails with

ImportError while loading conftest '/build/source/tests/conftest.py'.
tests/conftest.py:15: in <module>
    from tests import utils
tests/utils/__init__.py:7: in <module>
    from tests.utils.mock_backend import BackendMock
tests/utils/mock_backend.py:8: in <module>
    from pytest_mock import _get_mock_module  # type: ignore
E   ImportError: cannot import name '_get_mock_module' from 'pytest_mock' (/nix/store/cn86h8xap96v0xxfzypg5zr8xjbzccgm-python3.9-pytest-mock-3.6.1/lib/python3.9/site-packages/pytest_mock/__init__.py)

when using pytest-mock v3.6.1.

Wandb features n/a

How to reproduce Build this nix derivation:

source

{ buildPythonPackage
, flask
, pytest-mock
, click
, pytestCheckHook
, configparser
, docker_pycreds
, fetchFromGitHub
, matplotlib
, bokeh
, git
, GitPython
, lib
, pathtools
, promise
, protobuf
, psutil
, python
, python-dateutil
, pyyaml
, requests
, sentry-sdk
, shortuuid
, subprocess32 ? null
, yaspin
}:

buildPythonPackage rec {
  pname = "wandb";
  version = "0.12.2";

  src = fetchFromGitHub {
    owner = pname;
    repo = "client";
    rev = "v${version}";
    sha256 = "0rdh7vgb3njj9xi8kjfm4735zw3slzvc0qsvsc7nrl65d8iwn0j3";
  };

  # The wandb requirements.txt does not distinguish python2/3 dependencies. We
  # need to drop the subprocess32 dependency when building for python3.
  patchPhase = lib.optional python.isPy3 ''
    sed -i 's/^subprocess32>=.*//' requirements.txt
  '';

  # git is not a setup.py dependency of wandb, but wandb does expect git to be
  # in PATH.
  propagatedBuildInputs = [
    click
    configparser
    docker_pycreds
    git
    GitPython
    pathtools
    promise
    protobuf
    psutil
    python-dateutil
    pyyaml
    requests
    sentry-sdk
    shortuuid
    yaspin
  ] ++ lib.optionals python.isPy2 [ subprocess32 ];

  # The wandb tests require network access, and so cannot be run in the nix
  # build environment.
  # doCheck = false;
  checkInputs = [
    pytestCheckHook
    bokeh
    flask
    pytest-mock
    matplotlib
  ];

  pythonImportsCheck = [ "wandb" ];

  meta = with lib; {
    description = "A CLI and library for interacting with the Weights and Biases API";
    homepage = "https://github.com/wandb/client";
    license = licenses.mit;
    maintainers = with maintainers; [ samuela ];
  };
}

Environment

• OS: NixOS
• Environment: n/a
• Python Version: 3.9

[vanpelt]

0.12.4 was a patch release. The next release will be early-mid next week and will contain the fix.

[vanpelt]

@samuela apologies, this didn’t make it into the last release. It will make it into the next one. Until then you can install from the branch as mentioned above.