A *finally clause* is always executed before leaving the :keyword:`try`
statement, whether an exception has occurred or not. When an exception has
occurred in the :keyword:`!try` clause and has not been handled by an
:keyword:`except` clause (or it has occurred in an :keyword:`!except` or
:keyword:`!else` clause), it is re-raised after the :keyword:`finally` clause has
been executed. The :keyword:`!finally` clause is also executed "on the way out"
when any other clause of the :keyword:`!try` statement is left via a
:keyword:`break`, :keyword:`continue` or :keyword:`return` statement. A more
complicated example::
If a :keyword:`finally` clause is present, the :keyword:`finally` clause will execute as the last task before the :keyword:`try` statement completes. The :keyword:`finally` clause runs whether or not the :keyword:`try` statement produces an exception. The following points discuss more complex cases when an exception occurs:
* If an exception occurs during execution of the :keyword:`!try` clause, the exception may be handled by an :keyword:`except` clause. In all cases, the exception is re-raised after the :keyword:`!finally` clause has been executed.
* An exception could occur during execution of an :keyword:`!except` or :keyword:`!else` clause. Again, the exception is re-raised after the :keyword:`!finally` clause has been executed.
* If the :keyword:`!try` statement reaches a :keyword:`break`, :keyword:`continue` or :keyword:`return` statement, the :keyword:`finally` clause will execute just prior to the :keyword:`break`, :keyword:`continue` or :keyword:`return` statement's execution.
* If a :keyword:`finally` clause includes a :keyword:`return` statement, the :keyword:`finally` clause's :keyword:`return` statement will execute before, and instead of, the :keyword:`return` statement in a :keyword:`try` clause.
