1 files changed, 40 insertions, 0 deletions
diff --git a/pkgs/development/python-modules/graphlib-backport/default.nix b/pkgs/development/python-modules/graphlib-backport/default.nix
new file mode 100644
index 000000000000..54d166a88ba2
--- /dev/null
+++ b/pkgs/development/python-modules/graphlib-backport/default.nix
@@ -0,0 +1,40 @@
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, setuptools
+, poetry-core
+}:
+
+buildPythonPackage rec {
+  pname = "graphlib-backport";
+  version = "1.1.0";
+
+  format = "pyproject";
+
+  src = fetchFromGitHub {
+    owner = "mariushelf";
+    repo = "graphlib_backport";
+    rev = version;
+    hash = "sha256-ssJLtBQH8sSnccgcAKLKfYpPyw5U0RIm1F66/Er81lo=";
+  };
+
+  postPatch = ''
+    substituteInPlace pyproject.toml        \
+      --replace 'poetry>=1.0' 'poetry-core' \
+      --replace 'poetry.masonry.api' 'poetry.core.masonry.api'
+  '';
+
+  propagatedBuildInputs = [
+    setuptools
+    poetry-core
+  ];
+
+  pythonImportsCheck = [ "graphlib" ];
+
+  meta = with lib; {
+    description = "Backport of the Python 3.9 graphlib module for Python 3.6+";
+    homepage = "https://github.com/mariushelf/graphlib_backport";
+    license = licenses.psfl;
+    maintainers = with maintainers; [ t4ccer ];
+  };
+}