1 files changed, 43 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/rank-bm25/default.nix b/nixpkgs/pkgs/development/python-modules/rank-bm25/default.nix
new file mode 100644
index 000000000000..9b0c5080449d
--- /dev/null
+++ b/nixpkgs/pkgs/development/python-modules/rank-bm25/default.nix
@@ -0,0 +1,43 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchFromGitHub
+, numpy
+}:
+let
+  pname = "rank-bm25";
+  version = "0.2.2";
+in
+buildPythonPackage {
+  inherit version pname;
+  format = "setuptools";
+
+  # Pypi source package doesn't contain tests
+  src = fetchFromGitHub {
+    owner = "dorianbrown";
+    repo = pname;
+    rev = version;
+    hash = "sha256-+BxQBflMm2AvCLAFFj52Jpkqn+KErwYXU1wztintgOg=";
+  };
+
+  disabled = pythonOlder "3.7";
+
+  postPatch = ''
+    # Upstream doesn't provide a PKG-INFO file
+    substituteInPlace setup.py --replace "get_version()" "'${version}'"
+  '';
+
+  propagatedBuildInputs = [
+    numpy
+  ];
+
+  pythonImportsCheck = [ "rank_bm25" ];
+
+  meta = with lib; {
+    description = "A Collection of BM25 Algorithms in Python";
+    homepage = "https://github.com/dorianbrown/rank_bm25";
+    changelog = "https://github.com/dorianbrown/rank_bm25/releases/tag/${version}";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ happysalada ];
+  };
+}