Permission Denied launching python script on Mint 17.3

Question

I have a cinnamon applet (javascript) running in the ~/.local/share/cinnamon/applets/applet@uuid/ folder that users download from Cinnamon Spices using the applet (window) in System Settings. In this javascript I launch a python script that creates a window for managing feeds.

Sometime after Feb I have started getting a permission denied error when the following code is executed, launching a python script on Mint 17.3:

GLib.spawn_async_with_pipes(null, argv, null, GLib.SpawnFlags.DO_NOT_REAP_CHILD, null);

This only happens on Mint 17.3, cinnamon installed on Fedora 23 works without an issue.

The error I get is:

GLib.SpawnError: Failed to execute child process
Failed to execute child process (Permission denied)

If the user changes the python script and gives it execute permissions then it works, however since this is downloaded and installed behind the scenes I don't think this is something I can automatically do?

Answer 1

Two options:

1. Invoke ["python", "myscript.py"] instead of trying to execute the script directly.

2. Programmatically chmod it to add the executable flag