diff --git a/pkgs/development/python-modules/tblib/default.nix b/pkgs/development/python-modules/tblib/default.nix
new file mode 100644
index 00000000000..1ba3c98492c
--- /dev/null
+++ b/pkgs/development/python-modules/tblib/default.nix
@@ -0,0 +1,18 @@
+{ stdenv, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "tblib";
+  version = "1.3.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "02iahfkfa927hb4jq2bak36ldihwapzacfiq5lyxg8llwn98a1yi";
+  };
+
+  meta = with stdenv.lib; {
+    description = "Traceback fiddling library. Allows you to pickle tracebacks.";
+    homepage = https://github.com/ionelmc/python-tblib;
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ teh ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 67223829ae4..376972f161f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2051,22 +2051,7 @@ in {
 
   locket = callPackage ../development/python-modules/locket { };
 
-  tblib = buildPythonPackage rec {
-    name = "tblib-${version}";
-    version = "1.3.0";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/t/tblib/${name}.tar.gz";
-      sha256 = "02iahfkfa927hb4jq2bak36ldihwapzacfiq5lyxg8llwn98a1yi";
-    };
-
-    meta = {
-      description = "Traceback fiddling library. Allows you to pickle tracebacks.";
-      homepage = "https://github.com/ionelmc/python-tblib";
-      license = licenses.bsd2;
-      maintainers = with maintainers; [ teh ];
-    };
-  };
+  tblib = callPackage ../development/python-modules/tblib { };
 
   s3fs = buildPythonPackage rec {
     name = "s3fs-${version}";