hello_world

Overview

The hello_world application is a basic example that demonstrates the fundamental structure of a Raya application.

Execution

To run the application, use:

python3 hello_world/ --auto-run

Behavior

  1. Setup Phase

    • Initializes the application.

    • Logs a message: "Hello from setup()".

    • Initializes a counter: i = 0.

  2. Loop Phase

    • Runs every second (LOOP_DELAY = 1.0).

    • Increments i and logs: "Hello from loop() {i}".

    • Repeats until i == 5, then stops the application.

  3. Finish Phase

    • Logs a message: "Hello from finish()".

    • Exits the application.

Example output

[INFO] [timestamp] [pyraya.hello_world]: Auto running the app
[INFO] [timestamp] [pyraya.hello_world]: Hello from setup()
[INFO] [timestamp] [pyraya.hello_world]: Hello from loop() 1
[INFO] [timestamp] [pyraya.hello_world]: Hello from loop() 2
[INFO] [timestamp] [pyraya.hello_world]: Hello from loop() 3
[INFO] [timestamp] [pyraya.hello_world]: Hello from loop() 4
[INFO] [timestamp] [pyraya.hello_world]: Hello from loop() 5
[INFO] [timestamp] [pyraya.hello_world]: Hello from finish()

Key Notes

  • This example helps users understand the setup-loop-finish structure of a Raya application.

  • The loop runs exactly 5 times, demonstrating how to control execution flow.

  • The finish() method ensures clean termination of the application.