Hi all, I'm working on making pymake Python 3-compatible, while still maintainin Python 2 support (work in progress here: https://github.com/mozilla/pymake/)
I've addressed most minor issues, but there's two I don't feel comfortable with: dict.iteritems() vs dict.items() and range vs. xrange. In Python 3, items(), keys() and values() on dict no longer return lists, but rather lazy generators. The same goes for range(), it's now lazy and assumes the behavior of Python 2's xrange(), which no longer exists. This is nice, except it makes cross-compatible code much harder, since all functions exist in both Python versions but have very different semantics. I'm guessing you won't like the Python 2 code to always use eager items, keys, value and range, because it would take its toll on memory consumption and unnecessary copies. Do you have any ideas for version-agnostic patterns? Thanks, - Kim _______________________________________________ dev-builds mailing list [email protected] https://lists.mozilla.org/listinfo/dev-builds
