Write a Hello World application with Python

Launch Geany. From the desktop, select Applications > Development > Geany.

Select Project > New. Name the project hello_world_python.

The fields represent the following:

• Name — The name of the project.
• Filename — The filepath of the project, where the project settings are stored. This path generally ends in .geany
• Base path — The base path of all files making up the project.

Click OK when prompted to create the directory.

Write a Hello World sample application. This example uses:

import sys

if __name__ == '__main__':
        printf("Hello World!")

    sys.exit(0)

Select File > Save As, and save it as hello_world.py

Select Build > Compile to compile the source.

Select Build > Build to create an executable for the code.

Select Build > Execute to execute the code in a terminal window:

Try the linting function by adding spaces in front of the print statement.

Select Build > Lint. You should see an indentation error:

Remove the extra spaces, and the code should lint successfully:

Next, try debugging the Hello World sample. Set a breakpoint in your code by adding the breakpoint() function before the print statement:

Select Build > Execute to start the debugger. Geany opens a terminal, starts the pdb debugger, and stops at the breakpoint. Use the commands n (next), s (step), or c (continue) to navigate through the code: