Oct. 7, 2005
9:21 a.m.
Nick Coghlan wrote:
Eric Nieuwland wrote:
What happens to
with 40*13+2 as X: print X
It would fail with a TypeError because the relevant slot in the type object was NULL - the TypeError checks aren't shown for simplicity's sake.
This behaviour isn't really any different from the existing PEP 343 - the only difference is that the statement looks for a __with__ slot on the original EXPR, rather than looking directly for an __enter__ slot.
Hmmm I hadn't noticed that. In my memory a partial implementation of the protocol was possible. Thus, __enter__/__exit__ would only be called if they exist. Oh well, I'll just add some empty methods. --eric