push sheeet

pkgs/development/python-modules/auto-lazy-imports/default.nix

@@ -0,0 +1,88 @@
+{
+  lib,
+  python,
+  buildPythonPackage,
+  fetchFromGitHub,
+  hatchling,
+  hatch-autorun,
+  pytestCheckHook,
+  runCommand,
+}:
+
+buildPythonPackage rec {
+  pname = "auto-lazy-imports"; # matches pypi
+  version = "0.4.2";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "hmiladhia";
+    repo = "lazyimports";
+    tag = "v${version}";
+    hash = "sha256-DPk/fupBuYmm7Xy5+qFkqeRoglflECuX8A0C2ncARhI=";
+  };
+
+  build-system = [
+    hatchling
+    hatch-autorun
+  ];
+
+  pythonImportsCheck = [
+    "lazyimports"
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  preInstallCheck = ''
+    if [[ -f "$out/${python.sitePackages}"/hatch_autorun_auto_lazy_imports.pth ]]; then
+      echo >&2 "Found hatch_autorun_auto_lazy_imports.pth in site-packages"
+    else
+      echo >&2 "ERROR: no hatch_autorun_auto_lazy_imports.pth file found in site-packages, please re-check derivation assumptions"
+      false
+    fi
+  '';
+
+  preCheck = ''
+    # Makes python load the .pth file in site-packages
+    export NIX_PYTHONPATH="$out/${python.sitePackages}''${NIX_PYTHONPATH:+:"$NIX_PYTHONPATH"}"
+  '';
+
+  # check if NIX_PYTHONPATH is properly set in downstream environments
+  passthru.tests = {
+    check-autorun-pyenv =
+      runCommand "${pname}-check-autorun-pyenv"
+        {
+          nativeBuildInputs = [
+            (python.withPackages (ps: [
+              ps.auto-lazy-imports
+              ps.pytest
+            ]))
+          ];
+        }
+        ''
+          pytest ${src}/tests && touch $out
+        '';
+
+    # TODO: this requires user to set NIX_PYTHONPATH
+    # check-autorun-env =
+    #   runCommand "${pname}-check-autorun-env"
+    #     {
+    #       nativeBuildInputs = [
+    #         python
+    #         python.pkgs.auto-lazy-imports
+    #         python.pkgs.pytest
+    #       ];
+    #     }
+    #     ''
+    #       pytest ${src}/tests && touch $out
+    #     '';
+  };
+
+  meta = {
+    description = "Enable lazy imports using native python syntax";
+    homepage = "https://github.com/hmiladhia/lazyimports";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ pbsds ];
+  };
+}