C:\Work\launchpad.py\examples>python hello.py
pygame 2.0.1 (SDL 2.0.14, Python 3.9.1)
Hello from the pygame community. https://www.pygame.org/contribute.html
<module 'launchpad_py' from 'C:\\Python\\lib\\site-packages\\launchpad_py\\__init__.py'>
Traceback (most recent call last):
  File "C:\Work\launchpad.py\examples\hello.py", line 167, in <module>
    main()
  File "C:\Work\launchpad.py\examples\hello.py", line 38, in main
    elif launchpad.LaunchpadProMk3().Check( 0 ):
AttributeError: module 'launchpad_py' has no attribute 'LaunchpadProMk3'