Phillip J. Eby wrote:
> Actually, it's fairly simple to write a generator decorator using
> context.swap() that saves and restores the current execution state
> around next()/send()/throw() calls, if you prefer it to be the
> generator's responsibility to maintain such context.
Yeah, I also realised there's a fairly obvious solution to my decimal.Context
"problem" too:
def iter_sin(iterable):
orig_ctx = decimal.getcontext()
with orig_ctx as ctx:
ctx.prec += 10
for r in iterable:
y = sin(r) # Very high precision during calculation
with orig_ctx:
yield +y # Interim results have normal precision
# We get "ctx" back here
# We get "orig_ctx" back here
That is, if you want to be able to restore the original context just *save*
the damn thing. . .
Ah well, chalk up the __suspend__/__resume__ idea up as another case of me
getting overly enthusiastic about a complex idea without looking for simpler
solutions first. It's not like it would be the first time ;)
Cheers,
Nick.
--
Nick Coghlan | [EMAIL PROTECTED] | Brisbane, Australia
---------------------------------------------------------------
http://boredomandlaziness.blogspot.com
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