2009/10/1 Eric Smith <eric at trueblade.com>:
> It's tangential, but in the str.format case you don't want to check for just
> '{asctime}', because you might want '{asctime:%Y-%m-%d}', for example.
>
> But there are ways to delay computing the time until you're sure it's
> actually being used in the format string, without parsing the format string.
> Now that I think of it, the same technique could be used with %-formatting:
Still tangential, but it seems to me that this discussion has exposed
a couple of areas where the logging interface is less than ideal:
- The introspection of the format string to delay computing certain
items (Eric's suggestion may be an improvement here).
- The "call str() on any non-string object to get a format string" API
(which precludes string subclasses).
I suspect other APIs will exist with similar issues once the whole
question of supporting multiple format syntaxes gets wider
publicity...
Paul.
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