[Python-Dev] Python 3.6 dict becomes compact and gets a private version; and keywords become ordered (original) (raw)
Tres Seaver tseaver at palladion.com
Tue Sep 13 14:21:25 EDT 2016
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On 09/13/2016 02:11 PM, Sven R. Kunze wrote:
On 13.09.2016 19:59, MRAB wrote:
The recommended way of dealing with features across different versions of Python is to check for them and see if they raise NameError or whatever, but I wonder if there would be any benefit to recording such things somewhere, e.g. sys.features['orderedargs'] returns True if arguments are passed in an ordered dict. Just to check: do people really that often change between Python implementations? My personal experience with this kind of compatibility is that it is rarely needed for large and complex programs. That is due to deployment and testing issues (at least in our environment as we run multiple Python services on a multitude of servers).
Lots of library authors have to straddle Python versions: consumers of those libraries only get to pick and choose when their code is at the "leaf" of the dependency tree (the application).
Tres. - --
Tres Seaver +1 540-429-0999 tseaver at palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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