diff --git a/pkgs/development/python-modules/sortedcollections/default.nix b/pkgs/development/python-modules/sortedcollections/default.nix
new file mode 100644
index 000000000000..b80e5655ff99
--- /dev/null
+++ b/pkgs/development/python-modules/sortedcollections/default.nix
@@ -0,0 +1,27 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, sortedcontainers
+}:
+
+buildPythonPackage rec {
+  pname = "sortedcollections";
+  version = "0.4.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "12dlzln9gyv8smsy2k6d6dmr0ywrpwyrr1cjy649ia5h1g7xdvwa";
+  };
+
+  buildInputs = [ sortedcontainers ];
+
+  # wants to test all python versions with tox:
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Python Sorted Collections";
+    homepage = http://www.grantjenks.com/docs/sortedcollections/;
+    license = licenses.asl20;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 1bf49963c5af..3e5dd5d4de75 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2797,25 +2797,7 @@ in {
 
   brotlipy = callPackage ../development/python-modules/brotlipy { };
 
-  sortedcollections = buildPythonPackage rec {
-    name = "sortedcollections-${version}";
-    version = "0.4.2";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/s/sortedcollections/${name}.tar.gz";
-      sha256 = "12dlzln9gyv8smsy2k6d6dmr0ywrpwyrr1cjy649ia5h1g7xdvwa";
-    };
-    buildInputs = [ self.sortedcontainers ];
-
-    # wants to test all python versions with tox:
-    doCheck = false;
-
-    meta = {
-      description = "Python Sorted Collections";
-      homepage = http://www.grantjenks.com/docs/sortedcollections/;
-      license = licenses.asl20;
-    };
-  };
+  sortedcollections = callPackage ../development/python-modules/sortedcollections { };
 
   hyperframe = callPackage ../development/python-modules/hyperframe { };