I have a Python script using callback functions to react to GPIO events, as described here: https://sourceforge.net/p/raspberry-gpio-python/wiki/Inputs/
The description states that Python runs the callback functions in separate threads.
The question I have is what kind of Python threads these are (e.g. the same as that defined by the threading module?) and if the GPIO python module (or another one) provides means for communication between these threads to, e.g., check if the previous thread has finished or how many threads are running.