Use launch_command.sh from python_worker.js

package.json

@@ -90,7 +90,7 @@
         "c9.ide.imgeditor": "#612e75ef4f",
         "c9.ide.immediate": "#a962119bec",
         "c9.ide.installer": "#0fde9f0067",
-        "c9.ide.language.python": "#6bac4885ea",
+        "c9.ide.language.python": "#ee964c5954",
         "c9.ide.mount": "#befb8188d5",
         "c9.ide.navigate": "#38ae100ea1",
         "c9.ide.newresource": "#981a408a7b",