python snippet du jour

[Ben Finney]

Martin Pool <mbp at canonical.com> writes:

> I hope this amuses you as much as it did me:
>
>          """Return the .bzrdir style format present in a directory."""
>          try:
>              format_string = transport.get_bytes(".bzr/branch-format")
> -        except errors.NoSuchFile:
> +        except errors.NoSuchFile, errors.TransportNotPossible:
>              raise errors.NotBranchError(path=transport.base)
>
>          try:

Whoops. That's not how to catch multiple exception types
<URL:http://docs.python.org/tutorial/errors.html#handling-exceptions>,
but it's a common mistake, and for that reason it iss invalid in Python
3 <URL:http://docs.python.org/3.1/reference/compound_stmts.html#except>.

Try this instead:

-        except errors.NoSuchFile:
+        except (errors.NoSuchFile, errors.TransportNotPossible):

-- 
 \       “We must respect the other fellow's religion, but only in the |
  `\       sense and to the extent that we respect his theory that his |
_o__)     wife is beautiful and his children smart.” —Henry L. Mencken |
Ben Finney