diff --git a/pkgs/development/python-modules/idna/2.nix b/pkgs/development/python-modules/idna/2.nix
new file mode 100644
index 00000000000..613fde773a7
--- /dev/null
+++ b/pkgs/development/python-modules/idna/2.nix
@@ -0,0 +1,20 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "idna";
+  version = "2.10";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6";
+  };
+
+  meta = {
+    homepage = "https://github.com/kjd/idna/";
+    description = "Internationalized Domain Names in Applications (IDNA)";
+    license = lib.licenses.bsd3;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9e76151e7b6..80e9b27fc11 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3241,7 +3241,10 @@ in {
 
   identify = callPackage ../development/python-modules/identify { };
 
-  idna = callPackage ../development/python-modules/idna { };
+  idna = if isPy3k then
+    callPackage ../development/python-modules/idna { }
+  else
+    callPackage ../development/python-modules/idna/2.nix { };
 
   idna-ssl = callPackage ../development/python-modules/idna-ssl { };