On Sun, Feb 16, 2014 at 11:35 AM, MRAB
You'll also need to note that:
((expr except Exception1: default1) except Exception2: default2)
is not the same as:
(expr except Exception1: default1 except Exception2: default2)
The first will also catch Exception2 if default1 raises it, whereas the second will catch Exception2 only if expr raises it and it hasn't been caught by the preceding 'except'.
Ooh. Good catch. This is not just an optimization, it's a specific piece of syntax: chaining 'except' blocks MUST catch only from the original. I'm also switching around my Proposal and Alternative Proposals a bit, as I'm currently leaning towards the colon rather than a keyword. Lots of edits to the PEP draft, but so far just kept local to my own computer. At what point (and in what way) should I start sharing those edits? ChrisA