From 501eb9712ef5f8f6d59e417ad2607798c1e31863 Mon Sep 17 00:00:00 2001
From: wisut hantanong <wizzup@gmail.com>
Date: Fri, 14 Jul 2017 19:57:40 +0700
Subject: [PATCH] python.pkgs.emcee: move to separate expression

---
 .../python-modules/emcee/default.nix          | 21 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            | 14 +------------
 2 files changed, 22 insertions(+), 13 deletions(-)
 create mode 100644 pkgs/development/python-modules/emcee/default.nix

diff --git a/pkgs/development/python-modules/emcee/default.nix b/pkgs/development/python-modules/emcee/default.nix
new file mode 100644
index 00000000000..3e95859fc0f
--- /dev/null
+++ b/pkgs/development/python-modules/emcee/default.nix
@@ -0,0 +1,21 @@
+{ stdenv, buildPythonPackage, fetchPypi
+, numpy }:
+
+buildPythonPackage rec {
+  pname = "emcee";
+  version = "2.1.0";
+  name = "${pname}-${version}";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0qyafp9jfya0mkxgqfvljf0rkic5fm8nimzwadyrxyvq7nd07qaw";
+  };
+
+  propagatedBuildInputs = [ numpy ];
+
+  meta = with stdenv.lib; {
+    description = "Kick ass affine-invariant ensemble MCMC sampling";
+    homepage = http://dan.iel.fm/emcee;
+    license = licenses.mit;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e5060cac853..63206861058 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -130,19 +130,7 @@ in {
 
   dkimpy = callPackage ../development/python-modules/dkimpy { };
 
-  emcee = buildPythonPackage {
-    name = "emcee-2.1.0";
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/e/emcee/emcee-2.1.0.tar.gz";
-      sha256 = "0qyafp9jfya0mkxgqfvljf0rkic5fm8nimzwadyrxyvq7nd07qaw";
-    };
-    propagatedBuildInputs = [ self.numpy ];
-    meta = {
-      homepage = http://dan.iel.fm/emcee;
-      license = "MIT";
-      description = "Kick ass affine-invariant ensemble MCMC sampling";
-    };
-  };
+  emcee = callPackage ../development/python-modules/emcee { };
 
   dbus-python = callPackage ../development/python-modules/dbus {
     dbus = pkgs.dbus;