How do I start idle?

To execute a file in IDLE, simply press the F5 key on your keyboard. You can also select Run → Run Module from the menu bar. Either option will restart the Python interpreter and then run the code that you’ve written with a fresh interpreter.

How do I start idle in Ubuntu?

You can launch IDLE both through the command line or the Ubuntu UI. Run the following command in the Terminal in order to launch IDLE. This will list all the IDLE applications installed on your system. Click on any one of them to Launch the Python integrated development environment.