From b01adce061a5e446549bddecb1c75d2e422867e7 Mon Sep 17 00:00:00 2001
From: wisut hantanong <wizzup@gmail.com>
Date: Fri, 28 Jul 2017 15:51:59 +0700
Subject: [PATCH] python.pkgs.chainmap: move to separate expression

---
 .../python-modules/chainmap/default.nix       | 22 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            | 19 +---------------
 2 files changed, 23 insertions(+), 18 deletions(-)
 create mode 100644 pkgs/development/python-modules/chainmap/default.nix

diff --git a/pkgs/development/python-modules/chainmap/default.nix b/pkgs/development/python-modules/chainmap/default.nix
new file mode 100644
index 00000000000..8eb18db08f9
--- /dev/null
+++ b/pkgs/development/python-modules/chainmap/default.nix
@@ -0,0 +1,22 @@
+{ stdenv, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "chainmap";
+  version = "1.0.2";
+  name = "${pname}-${version}";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "09h5gq43w516fqswlca0nhmd2q3v8hxq15z4wqrznfwix6ya6pa0";
+  };
+
+  # Requires tox
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Backport/clone of ChainMap";
+    homepage = "https://bitbucket.org/jeunice/chainmap";
+    license = licenses.psfl;
+    maintainers = with maintainers; [ abbradar ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 0ab149f0f88..d46838dddbf 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -621,24 +621,7 @@ in {
 
   chai = callPackage ../development/python-modules/chai { };
 
-  chainmap = buildPythonPackage rec {
-    name = "chainmap-1.0.2";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/c/chainmap/${name}.tar.gz";
-      sha256 = "09h5gq43w516fqswlca0nhmd2q3v8hxq15z4wqrznfwix6ya6pa0";
-    };
-
-    # Requires tox
-    doCheck = false;
-
-    meta = {
-      description = "Backport/clone of ChainMap";
-      homepage = "https://bitbucket.org/jeunice/chainmap";
-      license = licenses.psfl;
-      maintainers = with maintainers; [ abbradar ];
-    };
-  };
+  chainmap = callPackage ../development/python-modules/chainmap { };
 
   arelle = callPackage ../development/python-modules/arelle {
     gui = true;