I'm learning to use python. I just came across this article:
http://nedbatchelder.com/blog/200711/rethrowing_exceptions_in_python.html
It describes rethrowing exceptions in python, like this:

    try:
        do_something_dangerous()
    except:
        do_something_to_apologize()
        raise

Since you re-throw the exception, there shouold be an "outer catch-except" statement. But now, I was thinking. What  if the do_something_to_apologize() inside the except throws an error. Which one will be caught in the outer "catch-except"? The one you rethrow or the one thrown by do_something_to_apologize() ?
Or will the exception with the highest priotiry be caught first?