python.pkgs.whichcraft: move expression

pkgs/development/python-modules/whichcraft/default.nix

@@ -0,0 +1,19 @@
+{ lib, buildPythonPackage, fetchPypi, pytest }:
+
+buildPythonPackage rec {
+  pname = "whichcraft";
+  version = "0.1.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "5df20674e0a90028b5633417510f0001b63bc0f345ab3cbb184dd4b221d125ec";
+  };
+
+  checkInputs = [ pytest ];
+
+  meta = with lib; {
+    homepage = https://github.com/pydanny/whichcraft;
+    description = "Cross-platform cross-python shutil.which functionality";
+    license = licenses.bsd3;
+  };
+}

pkgs/top-level/python-packages.nix

@@ -16049,25 +16049,7 @@ EOF
     };
   };
 
-
+  whichcraft = callPackage ../development/python-modules/whichcraft { };
-  whichcraft = buildPythonPackage rec {
-    name = "whichcraft-${version}";
-    version = "0.1.1";
-
-    src = pkgs.fetchurl {
-      url = "https://github.com/pydanny/whichcraft/archive/${version}.tar.gz";
-      sha256 = "1xqp66knzlb01k30qic40vzwl51jmlsb8r96iv60m2ca6623abbv";
-    };
-
-    buildInputs = with self; [ pytest ];
-
-    meta = {
-      homepage = https://github.com/pydanny/whichcraft;
-      description = "Cross-platform cross-python shutil.which functionality";
-      license = licenses.bsd3;
-    };
-  };
-
 
   whisper = buildPythonPackage rec {
     name = "whisper-${version}";