From 1924bb8b148458d7252bd72d46bf3c1839c35079 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Sun, 24 Jan 2021 05:14:01 +0100
Subject: [PATCH] python3.pkgs.pynndescent: init at 0.5.1

---
 .../python-modules/pynndescent/default.nix    | 52 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 +
 2 files changed, 54 insertions(+)
 create mode 100644 pkgs/development/python-modules/pynndescent/default.nix

diff --git a/pkgs/development/python-modules/pynndescent/default.nix b/pkgs/development/python-modules/pynndescent/default.nix
new file mode 100644
index 000000000000..fd0aa18de14a
--- /dev/null
+++ b/pkgs/development/python-modules/pynndescent/default.nix
@@ -0,0 +1,52 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, fetchpatch
+, nose
+, scikitlearn
+, scipy
+, numba
+, llvmlite
+, joblib
+}:
+
+buildPythonPackage rec {
+  pname = "pynndescent";
+  version = "0.5.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "74a05a54d13573a38878781d44812ac6df97d8762a56f9bb5dd87a99911820fe";
+  };
+
+  patches = [
+    # fixes tests, included in next version
+    (fetchpatch {
+      url = "https://github.com/lmcinnes/pynndescent/commit/ef5d8c3c3bfe976063b6621e3e0734c0c22d813b.patch";
+      sha256 = "sha256-49n3kevs3wpzd4FfZVKmNpF2o1V8pJs4KOx8zCAhR3s=";
+    })
+  ];
+
+  checkInputs = [
+    nose
+  ];
+
+  propagatedBuildInputs = [
+    scikitlearn
+    scipy
+    numba
+    llvmlite
+    joblib
+  ];
+
+  checkPhase = ''
+    nosetests
+  '';
+
+  meta = with lib; {
+    description = "Nearest Neighbor Descent";
+    homepage = "https://github.com/lmcinnes/pynndescent";
+    license = licenses.bsd2;
+    maintainers = [ maintainers.mic92 ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 070e855b0c41..20ce58f5bc57 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4849,6 +4849,8 @@ in {
 
   pkuseg = callPackage ../development/python-modules/pkuseg { };
 
+  pynndescent = callPackage ../development/python-modules/pynndescent { };
+
   pysbd = callPackage ../development/python-modules/pysbd { };
 
   python-codon-tables = callPackage ../development/python-modules/python-codon-tables { };