This recipe needs some code to be run and Kivy to be properly installed. We will use the code in the recipe Relating Python code and the Kv language, where we have two files, e4.kv and e4.py.

This recipe may seem easy because it is just a few steps, but the explanation is important. Use Python from the shell to run the file e4.py:

$ Python e4.py --size=250x200

It will display:

As we've already seen in the recipe Relating Python code and the Kv language, the call to the e4.kv file occurs inside the e4.py code; as such, Kivy does not need an explicit reference. We used the option size previously because Kivy has a default size (usually 800x600 pixels) that did not meet our expectations.

Well, if you are using a different operative system, there are some other considerations.

$ kivy e4.py --size=250x200

Microsoft Windows

In Microsoft Windows, the portable package is called with a secondary click, using Send to menu, and selecting Kivy.

If you are interested in how to run your code on a mobile device, go to Chapter 9, Kivy for Mobile Devices.