![]() ![]() (as the has_key method has also been removed). In Python 3, this has been rationalised to just 3 out of 11 public methods Values and items from a dict instance, accounting for 9 out of the Python 2.7 provides three different sets of methods to extract the keys, Optional warning regarding direct use of the mapping iteration methods inĪ hybrid code base. Static code checkers like pylint could potentially be extended with an Need to be handled slightly differently to get the exact same semantics in Methods directly, and instead rely on builtin functions where possible,Īnd some additional helper functions for cases that would be a simpleĬombination of a builtin and a mapping method in pure Python 3 code, but Notably, I recommend that hybrid code avoid calling mapping iteration Python 2 to Python 3, as well as suggesting ways to keep things readableĪnd maintainable when writing hybrid code that supports both versions. Of the recommended approaches to migrating mapping iteration code from The main value I now see in this PEP is as a clear record The readability of hybrid Python 2/3 mapping code can actually be bestĮnhanced by better helper functions rather than by making changes to In writing the second draft of this PEP, I came to the conclusion that ![]() Supporting earlier versions when eventually making the leap to Python 3. Transition process for application code that doesn’t need to worry about The PEP also considers the question of whether or not there are anyĪdditions that may be worth making to Python 3.5 that may ease the The common subset of Python 2.6+ and Python 3.0+. Looks at the available options for migrating that code to Python 3 by way of Reviews the various ways the Python 2 iteration APIs may be accessed, and There is currently no widely agreed best practice on how to reliably convertĪll Python 2 dict iteration code to the common subset of Python 2 and 3,Įspecially when test coverage of the ported code is limited. Set based dynamic views: d.viewitems() -> d.items().Iterator objects: d.iteritems() -> iter(d.items()). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |