When a callback function is used in python, and the callback function needs to return a value, you need to assign the function passed as the callback function to a variable first, and then when the callback is over, you can retrieve the value of the variable back.
As I used to call xmlreader, a function passed in needs to retrieve the return value of the code:
# Create an XMLReader parser = .make_parser() # turn off namepsaces (.feature_namespaces, 0) # Rewrite ContextHandler Handler = xmlReader() (Handler) (info) print "$$$$$$$$$$$", #Taking values from an object
This allows you to get the values taken from the object.
Above this python in the callback function to get the return value of the method is all I have shared with you, I hope to give you a reference, and I hope you support me more.