On Fri, Mar 30, 2012 at 9:12 PM, Barry Drake <bdr...@crosswire.org> wrote: > On 30/03/12 16:19, Evert Rol wrote: >> >> Not sure. In the sense that you can "optimise" (refactor) it in the same >> way you could do with C. Eg: >> results = [0, 0, 0] >> flags = [0, 1, 2, 3] >> for flag in flags: >> results = getflag(flag, results) >> > > That's exactly what I hoped for. I hadn't realised I can initialise a list > in one go - it seems that lists work a lot like the arrays I was used to in > c. Thanks to the others who took the time to answer. Just now, Asokan's > solution is a bit obscure to me - I'll work on that one, but the above is > lovely and elegant; and easy to understand. Someone asked about the getflag > function - it is: >
> def getflag(thisflag, results): > if (thisflag == 2): > results[0] += 1 > elif (thisflag == 1):> In c, I would have used switch and case, but I > gather there is no direct > equivalent in Python ... But it works as is. > > -- > From Barry Drake - a member of the Ubuntu advertising team. > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor and directly index on thisflag > results[1] += 1 > elif (thisflag == 0): > results[2] += 1 > return(results) > For the specific values it may be simpler to write: def getflag(thisflag, results): results[2- thisflag] += 1 return results Or you may rearrange the meaning of results and write results[thisflag] += 1 HTH Asokan Pichai _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
