From 76f507357347e41de512039e189e5016edcaa2bb Mon Sep 17 00:00:00 2001
From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Date: Sat, 4 Sep 2021 06:51:27 -0400
Subject: [PATCH] pythonPackages.fastjet: init

---
 .../libraries/physics/fastjet/default.nix            | 12 ++++++++----
 pkgs/top-level/python-packages.nix                   |  5 +++++
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/libraries/physics/fastjet/default.nix b/pkgs/development/libraries/physics/fastjet/default.nix
index 55d272f405b7..65fb04b707ab 100644
--- a/pkgs/development/libraries/physics/fastjet/default.nix
+++ b/pkgs/development/libraries/physics/fastjet/default.nix
@@ -1,4 +1,9 @@
-{ lib, stdenv, fetchurl, python2 }:
+{ lib
+, stdenv
+, fetchurl
+, python
+, withPython ? false
+}:
 
 stdenv.mkDerivation rec {
   pname = "fastjet";
@@ -9,12 +14,11 @@ stdenv.mkDerivation rec {
     hash = "sha256-7gfIdHyOrYbYjeSp5OjR6efXYUlz9WMbqCl/egJHi5E=";
   };
 
-  buildInputs = [ python2 ];
+  buildInputs = lib.optional withPython python;
 
   configureFlags = [
     "--enable-allcxxplugins"
-    "--enable-pyext"
-    ];
+  ] ++ lib.optional withPython "--enable-pyext";
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 2ef3b52af0a4..9264ed7b2d0f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2502,6 +2502,11 @@ in {
 
   fastimport = callPackage ../development/python-modules/fastimport { };
 
+  fastjet = toPythonModule (pkgs.fastjet.override {
+    withPython = true;
+    inherit python;
+  });
+
   fastjsonschema = callPackage ../development/python-modules/fastjsonschema { };
 
   fastnlo_toolkit = toPythonModule (pkgs.fastnlo_toolkit.override {