1 files changed, 9 insertions, 4 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/pexpect/default.nix b/nixpkgs/pkgs/development/python-modules/pexpect/default.nix
index 4c287cfc37c..aead62913c7 100644
--- a/nixpkgs/pkgs/development/python-modules/pexpect/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/pexpect/default.nix
@@ -2,15 +2,16 @@
 , buildPythonPackage
 , fetchPypi
 , ptyprocess
+, isPy3k
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (rec {
   pname = "pexpect";
-  version = "4.7.0";
+  version = "4.8.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "9e2c1fd0e6ee3a49b28f95d4b33bc389c89b20af6a1255906e90ff1262ce62eb";
+    sha256 = "fc65a43959d153d0114afe13997d439c22823a27cefceb5ff35c2178c6784c0c";
   };
 
   # Wants to run pythonin a subprocess
@@ -40,4 +41,8 @@ buildPythonPackage rec {
       any platform that supports the standard Python pty module.
     '';
   };
-}
+# TODO: move into main set, this was to avoid a rebuild
+} // lib.optionalAttrs (!isPy3k ) {
+  # syntax error in _async module, likely intended only for Python 3.
+  dontUsePythonRecompileBytecode = !isPy3k;
+})