Ubuntu – execute shell script from desktop in xfce

In this case, it is not necessary to use Terminal=true in your .desktop file. To open your python script in gnome-terminal with a specific profile or a particular window size you can use:

Exec=gnome-terminal --profile=Profile_name --geometry=widthxheight -e '/path/to/script.py'

You have more other options if you look at man gnome-terminal.

Also, be sure that you have this two lines at the end of your python script if you want to keep the terminal open after the execution of the script is finished:

import os            # Use this line only if you have not already imported the os module
os.system("$SHELL")

The content of your desktop file should look like (see how to create a .desktop file using a text editor):

[Desktop Entry]
Version=1.0
Name=Test        
Comment=Test the terminal running a command inside it
Exec=gnome-terminal -e "bash -c 'echo hello;$SHELL'"
Icon=utilities-terminal
Terminal=false
Type=Application
Categories=Application;

Or:

[Desktop Entry]
Version=1.0
Name=Test        
Comment=Test the terminal running a command inside it
Exec=bash -c 'echo hello;$SHELL'
Icon=utilities-terminal
Terminal=true 
Type=Application
Categories=Application;

In the first case, the Terminal field is set to false (perhaps contrary to your expectations) and in second case is set to true, but the result is in both cases the same.