python3Packages.betterproto: init at 2.0.0b5 (#187533)

Co-authored-by: Sandro <sandro.jaeckel@gmail.com>

pkgs/development/python-modules/betterproto/default.nix

@@ -0,0 +1,76 @@
+{ buildPythonPackage
+, fetchFromGitHub
+, lib
+, pythonOlder
+, poetry-core
+, grpclib
+, python-dateutil
+, dataclasses
+, black
+, jinja2
+, isort
+, python
+, pytestCheckHook
+, pytest-asyncio
+, pytest-mock
+, tomlkit
+, grpcio-tools
+}:
+
+buildPythonPackage rec {
+  pname = "betterproto";
+  version = "2.0.0b5";
+  format = "pyproject";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "danielgtaylor";
+    repo = "python-betterproto";
+    rev = "v${version}";
+    sha256 = "sha256-XyXdpo3Yo4aO1favMWC7i9utz4fNDbKbsnYXJW0b7Gc=";
+  };
+
+  nativeBuildInputs = [ poetry-core ];
+
+  propagatedBuildInputs = [
+    grpclib
+    python-dateutil
+  ] ++ lib.optional (pythonOlder "3.7") [
+    dataclasses
+  ];
+
+  passthru.optional-dependencies.compiler = [
+    black
+    jinja2
+    isort
+  ];
+
+  pythonImportsCheck = [ "betterproto" ];
+
+  checkInputs = [
+    pytestCheckHook
+    pytest-asyncio
+    pytest-mock
+    tomlkit
+    grpcio-tools
+  ] ++ passthru.optional-dependencies.compiler;
+
+  # The tests require the generation of code before execution. This requires
+  # the protoc-gen-python_betterproto script from the packge to be on PATH.
+  preCheck = ''
+    export PATH=$PATH:$out/bin
+    ${python.interpreter} -m tests.generate
+  '';
+
+  meta = with lib; {
+    description = "Clean, modern, Python 3.6+ code generator & library for Protobuf 3 and async gRPC";
+    longDescription = ''
+      This project aims to provide an improved experience when using Protobuf /
+      gRPC in a modern Python environment by making use of modern language
+      features and generating readable, understandable, idiomatic Python code.
+    '';
+    homepage = "https://github.com/danielgtaylor/python-betterproto";
+    license = licenses.mit;
+    maintainers = with maintainers; [ nikstur ];
+  };
+}

pkgs/top-level/python-packages.nix

@@ -1306,6 +1306,8 @@ in {
 
   betamax-serializers = callPackage ../development/python-modules/betamax-serializers { };
 
+  betterproto = callPackage ../development/python-modules/betterproto { };
+
   bibtexparser = callPackage ../development/python-modules/bibtexparser { };
 
   bidict = callPackage ../development/python-modules/bidict { };