likely because the scope didn't trigger, so there was no data available. It's non-blocking, (thus the time.sleep() call), so if it waits for a trigger that doesn't happen, when you ask for data, none will be available.

When attempting to call a method on this "scope" object, it first checks to see if the name of the method you are calling starts with ps2000 - if so, it attempts to call such a method from the DLL/library. If not, it defers to any method that the scope object itself has. In this case, it looks like ...

That script is quite old, and I believe the pico API has changed since then. I have attached a newer version of my python interface, try that first.

all, I have implemented a partial interface to the PS2000 via python. it shouldn't be difficult for anyone to implement the missing functionality or add support for other pico models. currently it only supports windows, but linux support should be as simple as changing the library name/location. enj...