I am having an issue trying to run the testSDL_Pi_TCA9545.py scripts after connecting all the boards per the instruction. I tried searching and it appears somebody had the same problem in the past too, but I cannot find the answer in the thread.
sudo python testSDL_Pi_TCA9545.py
Test SDL_Pi_TCA9545 Version 1.0 - SwitchDoc Labs
Sample uses 0x73
Program Started at:2018-03-30 15:07:03
Traceback (most recent call last):
File "testSDL_Pi_TCA9545.py", line 51, in <module>