Why Isn't My Keyboard Input Detected in a Pygame Thread?

Keyboard Input Not Detected Within Thread in Pygame: Event Handling in Main Thread

In pygame, user input is handled through the event queue. However, when trying to retrieve events within a thread, users may encounter the issue where no events are returned.

This occurs because the event subsystem in pygame requires operation from the program's main thread. As per the documentation, "The event subsystem should be called from the main thread." Only the posting of events from other threads is permissible, while the processing of events must take place in the main thread.

To resolve this issue, it is crucial to ensure that the processing of events occurs within the main thread. This can be achieved by moving the event handling code back into the main loop:

def main():
    while True:
        events = pg.event.get()
        for event in events:
            # Handle events...

if __name__ == "__main__":
    main()

By following this approach, you can ensure that events are properly processed, and user input can be effectively detected within your pygame application.

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