[Tutor] How to test for the existence of a table in a sqlite3 db?

[Peter Otten]

boB Stepp wrote:

> I have not used a "finally" block before.  I just had the thought that
> maybe it would run even if an uncaught exception might occur.  I tried
> to test this thought by generating a deliberate NameError in the "try"
> block and added a print to the "finally" clause.  I got the intended
> NameError with no evidence of the added print printing.  But I thought
> I would ask just to be sure:  If an uncaught exception occurs, will
> the "finally" clause execute?


Yes.

>>> try:
...     1/0
... except ValueError:
...     print("not triggered")
... finally:
...     print("ALWAYS TRIGGERED")
... 
ALWAYS TRIGGERED
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
ZeroDivisionError: division by zero

If something seems too complex in your real code try to come up with a 
similar setup in the interactive interpreter (or use a minimal demo script 
if that proves impractical).