diff --git a/pkgs/development/python-modules/clize/default.nix b/pkgs/development/python-modules/clize/default.nix
new file mode 100644
index 000000000000..8456f8d473b5
--- /dev/null
+++ b/pkgs/development/python-modules/clize/default.nix
@@ -0,0 +1,26 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, dateutil
+, sigtools
+}:
+
+buildPythonPackage rec {
+  pname = "clize";
+  version = "3.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1xkr3h404d7pgj5gdpg6bddv3v3yq2hgx8qlwkgw5abg218k53hm";
+  };
+
+  buildInputs = [ dateutil ];
+  propagatedBuildInputs = [ sigtools ];
+
+  meta = with stdenv.lib; {
+    description = "Command-line argument parsing for Python";
+    homepage = "https://github.com/epsy/clize";
+    license = licenses.mit;
+  };
+
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 27cab50751af..0d8bada4f732 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4563,28 +4563,7 @@ in {
 
   sigtools = callPackage ../development/python-modules/sigtools { };
 
-  clize = buildPythonPackage rec {
-    name = "clize-${version}";
-    version = "3.0";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/c/clize/${name}.tar.gz";
-      sha256 = "1xkr3h404d7pgj5gdpg6bddv3v3yq2hgx8qlwkgw5abg218k53hm";
-    };
-
-    buildInputs = with self; [
-      dateutil
-    ];
-    propagatedBuildInputs = with self; [
-      sigtools
-    ];
-
-    meta = {
-      description = "Command-line argument parsing for Python";
-      homepage = "https://github.com/epsy/clize";
-      license = licenses.mit;
-    };
-  };
+  clize = callPackage ../development/python-modules/clize { };
 
   zerobin = buildPythonPackage rec {
     name = "zerobin-${version}";