start_stream called function arguments - not enough

[Agomez-jaime]

Hi! I'm streaming data with the pyOpenBCI start stream function and in the argument calling another function, just as in your example:

from pyOpenBCI import OpenBCICyton

def print_raw(sample):
print(sample.channels_data)

board = OpenBCICyton(port='COM5', daisy=False)

board.start_stream(print_raw)

However, I need my function to have more arguments than just sample, but when I declare them in 'def print_raw(sample):', i need to also write them in 'board.start_stream(print_raw)'. Now, if I do that, I also have to write sample, so it would be something like this:
board.start_stream(print_raw(sample, argument2)

But when I do that, I get an error that says sample is not defined, and I don't know how I should define it for start_stream to accept more arguments. It feels like a vicious cycle.

Also, does anyone know the difference between start_stream and start_streaming? I've seen both on the Internet.

Thank you!