On Mon, Jun 22, 2009 at 7:25 PM, Wayne<sri...@gmail.com> wrote: > With string formatting I know you can easily specify precision a la > 'file%.2d.jpg' % 1 which would give me 'file01.jpg' but then I discovered > you can indeed chain together formatting (or use variables in place of > string constants... of course some of us know that string objects really are > references to constant strings...) - you just have to add %% where you want > the final one: > > In [45]: 'some numbers %%.%sd' % 8 % 4 > Out[45]: 'some numbers 00000004'
Even simpler - you can use a * for the field width or precision, which means, take the width or precision from the argument list: In [12]: 'some numbers %.*d' % (8, 4) Out[12]: 'some numbers 00000004' In [13]: 'some numbers %*.*d' % (12, 8, 4) Out[13]: 'some numbers 00000004' Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
