Cheers AndrewZ
Do you see the steps in the prerequisites section in this thread. Are they the steps to set up I2C emulation using GPIO? From this thread it looks like you didn't go with native I2C yourself? Why not and which is better do you know?
With your BME280 sensor did you follow all these steps to install various python libraries? In that previous (second) link I see you simply reading the temp with the cat command.
Sorry for all the questions!
Flex