At 09:30 PM 2/21/2007, Dick Moores wrote: >At 06:45 PM 2/21/2007, Terry Carroll wrote: > >I'm glad to have learned your cool Boolean trick ( sign = >['','-'][n<0] ), but I think instead I'll try to make > > > sign = '-' if n<0 else '' > >a habit.
Here's some timing info: retiming my computeBin() (the same function I first asked about--I just realized that running other apps, such as Firefox, while using timeit.py can give wildly differing results, so I've done these with a lot fewer running than before): for n of 12345678901234567890 1000 loops, best of 3: 364 usec per loop for n of 1234567890 10000 loops, best of 3: 52 usec per loop for n of 12345 10000 loops, best of 3: 29 usec per loop for Terry Carroll's computeBin() using sign = ['','-'][n<0] for n of 12345678901234567890 10000 loops, best of 3: 161 usec per loop for n of 1234567890 10000 loops, best of 3: 76 usec per loop for n of 12345 10000 loops, best of 3: 38 usec per loop for Terry Carroll's computeBin() using sign = '-' if n<0 else '' for n of 12345678901234567890 10000 loops, best of 3: 149 usec per loop for n of 1234567890 10000 loops, best of 3: 82 usec per loop for n of 12345 10000 loops, best of 3: 39 usec per loop Dick Moores _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
