Re: TypeError: object cannot be interpreted as an index
On Apr 8, 8:44 pm, Piet van Oostrum wrote: > > "tleeuwenb...@gmail.com" (tc) wrote: > >tc> What, exactly, needs to be in place for an object to be a valid > >tc> dictionary key? > > It must have __hash__ and __cmp__ or __eq__ methods. Newstyle classes > inherit these from object. > -- > Piet van Oostrum > URL:http://pietvanoostrum.com[PGP 8DAE142BE17999C4] > Private email: p...@vanoostrum.org Awesome, thanks. I wonder if this is an 'old-style' class, something I've never used myself... I'll have to do some research. -T -- http://mail.python.org/mailman/listinfo/python-list
Re: Multithreading / multiprocess
On Apr 11, 10:39 pm, "Diez B. Roggisch" wrote: > tleeuwenb...@gmail.com schrieb: > > > Is there anyway to begin a thread and execute a finite number of lines > > of code, or a finite amount of time within it? > > > For example, say I create three child threads and I want to guarantee > > equal timeshare between them, can I specify a quanta (say 400 LOC > > although I know that is pretty small) to execute in each one in turn? > > Not as such, no. You can play tricks with the trace-module, but these > ultimately fail when the code in question runs inside C - which puts a > stop to any python interpreter scheduling anyway, thus native threads > are used which can't be controlled on that level. > > Diez Mmmm good point. 1 line of Python != 1 line of C. That's probably not very important for what I have in mind, but I hadn't really been considering that angle. Cheers, -T -- http://mail.python.org/mailman/listinfo/python-list
Re: Multithreading / multiprocess
On Apr 12, 2:59 am, a...@pythoncraft.com (Aahz) wrote: > In article > <57065c62-2024-47b5-a07e-1d60ff85b...@y10g2000prc.googlegroups.com>, > > tleeuwenb...@gmail.com wrote: > > >Is there anyway to begin a thread and execute a finite number of lines > >of code, or a finite amount of time within it? > > >For example, say I create three child threads and I want to guarantee > >equal timeshare between them, can I specify a quanta (say 400 LOC > >although I know that is pretty small) to execute in each one in turn? > > You have extremely coarse-grained control with sys.setcheckinterval(). > However, there is no guarantee which thread will pick up control after > each context switch, so one thread might get more than its share. Thanks for your reply! Will add that to my reading list. Cheers, -T -- http://mail.python.org/mailman/listinfo/python-list
