1 files changed, 34 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/effect/default.nix b/nixpkgs/pkgs/development/python-modules/effect/default.nix
new file mode 100644
index 000000000000..8e4ad446746a
--- /dev/null
+++ b/nixpkgs/pkgs/development/python-modules/effect/default.nix
@@ -0,0 +1,34 @@
+{ buildPythonPackage
+, fetchPypi
+, isPy37
+, lib
+, six
+, attrs
+, pytest
+, testtools
+}:
+buildPythonPackage rec {
+  version = "0.12.0";
+  pname = "effect";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0s8zsncq4l0ar2b4dijf8yzrk13x2swr1w2nb30s1p5jd6r24czl";
+  };
+  checkInputs = [
+    pytest
+    testtools
+  ];
+  propagatedBuildInputs = [
+    six
+    attrs
+  ];
+  checkPhase = ''
+    pytest
+  '';
+  meta = with lib; {
+    description = "Pure effects for Python";
+    homepage = https://github.com/python-effect/effect;
+    license = licenses.mit;
+  };
+}