On Tue, 21 May 2013 23:26:58 -0400, Ned Batchelder wrote: > On 5/21/2013 10:26 PM, Carlos Nepomuceno wrote:
>> "Since str.format() is quite new, a lot of Python code still uses the % >> operator. However, because this old style of formatting will eventually >> be removed from the language, str.format() should generally be used." >> Is this tutorial outdated or this still an issue? > That tutorial is out of date. %-formatting isn't being removed. Indeed, removing %-formatting could break a substantial amount of live code, with potentially significant maintenance effort in the user community simply to make existing code work with the new interpreter. The effect of this on corporations using python code translates into "business risk", and the next step is "we can avoid the business risk by migrating our python scripts to some other language." For the designers and maintainers of any language to arbitrarily[1] (in the eyes of the user base) remove a widely used feature that would have a major effect on the user base could kill off a language, simply because many users will not want to take the risk of it happening again, even if they can easily automate the upgrade from removed obsolete language feature to new shiny language feature. [1] Some portion of the user base will always consider any such change that causes them headaches and additional effort as having been arbitrary, no matter how well the language designers and maintainers explain the need to break the old scripts. -- Denis McMahon, denismfmcma...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
