On Thu, Apr 27, 2017 at 2:19 AM, Tim Peters <tim.pet...@gmail.com> wrote: > [boB Stepp <robertvst...@gmail.com>] > >> I cannot find any discernible >> difference between '%f' % <some floating point number> and '%F' % >> <some floating point number>. Is there any or do they duplicate >> functionality? If the latter, why are there two ways of doing the >> same thing? > > They differ only in the capitalization of the strings produced for > NaNs and infinities (math.nan and math.inf in Python 3). > >>>> "%f" % math.nan > nan' >>>> "%F" % math.nan > NAN' >>>> "%f" % math.inf > inf' >>>> "%F" % math.inf > INF'
In context this can be inferred from the docs, but I think f/F should indicate the casing difference just like e/E, g/G, and x/X do. https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor