Exception Handeling

try:
    something
    raise Exception        #throw an exception explicitly
except (FileNotFoundError, OtherError, ...) as e:
    print(e)
except Exception as e:     #parent exception
    print(e)
else:
    print("if none of above Exception(s) occured, then this block will run")
finally:
    print("will run, no matter what (exception occurs or not)")

Note: The codes inside finally will be executed no matter whether there was an exception or not. If there is a "return" or "exit" inside the exception blocks, before returning or exiting, the finally codes will still be executed.