you mean it will always run even if the exception is handled? On Thu, Jun 24, 2010 at 9:06 AM, Hugo Arts <hugo.yo...@gmail.com> wrote:
> On Thu, Jun 24, 2010 at 4:36 AM, Christopher King <g.nius...@gmail.com> > wrote: > > In a try except clause, you can end with finally block. I know it > runs > > after the try and except blocks regardless of the outcome, but why use > it. > > Couldn't you just put the code after the try and except block without > using > > a finally block. Does the finally command do something I don't know > about. > > Does it make your program more understandable in some way? > > The thing about the finally block is that it *always* runs. If you > just put some code after the try: except: clause, it won't run if > > a) the exception is not handled in the try: except: block, but higher > up in the call stack > b) the exception is not handled at all > c) the exception handler terminates the program > d) the exception handler raises another exception > > If you need to do some cleanup, putting it in a finally block is the > only way to *guarantee* it will run. > > Hugo >
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