generator expressions: performance anomaly?

[Ola Natvig]

Diez B. Roggisch wrote:
>>   lst = list(genexp)
>>   tpl = tuple(genexp)
>>
>>
>>Since in such cases the object is build in memory any way, I don't
>>think it would be a problem of having them prebuilt in memory, or am
>>I missing something?
> 
> 
> Yes. Consider this:
> 
> lst = list(time.time() for i in xrange(10))
> tpl = tuple(time.time() for i in xrange(10))
> 
> 


Would it be a bad solution to make that a list or tuple of ten 
time.time() calls, you could also restrict what theese prebuilding 
sequenses could contain, or perhaps try to prebuild them, and then fail 
if it's impossible.


-- 
--------------------------------------
  Ola Natvig <ola.natvig at infosense.no>
  infoSense AS / development