1 files changed, 44 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/typesystem/default.nix b/nixpkgs/pkgs/development/python-modules/typesystem/default.nix
new file mode 100644
index 000000000000..8a66d6cbcc9f
--- /dev/null
+++ b/nixpkgs/pkgs/development/python-modules/typesystem/default.nix
@@ -0,0 +1,44 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, isPy27
+, pytest
+, pytestcov
+, jinja2
+, pyyaml
+}:
+
+buildPythonPackage rec {
+  pname = "typesystem";
+  version = "0.2.4";
+  disabled = isPy27;
+
+  src = fetchFromGitHub {
+    owner = "encode";
+    repo = pname;
+    rev = version;
+    sha256 = "1k0jwcky17zwaz2vx4x2zbsnp270g4mgn7kx5bpl8jgx76qmsnba";
+  };
+
+  propagatedBuildInputs = [
+    jinja2
+    pyyaml
+  ];
+
+  checkInputs = [
+    pytest
+    pytestcov
+  ];
+
+  # for some reason jinja2 not picking up forms directory (1% of tests)
+  checkPhase = ''
+    pytest --ignore=tests/test_forms.py
+  '';
+
+  meta = with lib; {
+    description = "A type system library for Python";
+    homepage = https://github.com/encode/typesystem;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.costrouc ];
+  };
+}