Error: exception "asyncthreader.py"

[Bellum1410]

Hello. I've downloaded Python 3.9.2 for Windows, installed the required packages (Pillow and pyusb) and when I launch the app, I can see some thumbnails of apps but if I switch category (to, say, "Custom firmware"), the apps disappear, also the search results won't return anything for "atmosphere". The command line tells me there was an exception thrown in threading.py, originating in your asyncthreader.py, in lines 67 and 57. The reason it gives is "Attribute error: 'asyncThread' object has no attribute 'isAlive'. Hopefully you can fix this or point me in the right direction to do so myself. Thanks!

[tirkarthi]

asyncThread inherits from threading.Thread. isAlive was a deprecated alias for is_alive that was removed in Python 3.9. Using is_alive instead of isAlive will fix this issue since is_alive is present in both Python 2 and 3. I have created #2 as a fix.