diff --git a/machines/kcnhub/packages/python.nix b/machines/kcnhub/packages/python.nix
index 76a8bab..c0e13de 100644
--- a/machines/kcnhub/packages/python.nix
+++ b/machines/kcnhub/packages/python.nix
@@ -46,9 +46,12 @@
       # fetching neuromorphic data:
       tonic
 
+	
       # Librairies to deal with mesh
       #pymeshlab
       trimesh
+      #isoext
+
       # dependencies trimesh
       lxml # Parse XML documents. 
       networkx # Pure Python graph library