2011/4/7 Maciej Fijalkowski <fij...@gmail.com>: >> AFAIK the AST is >> CPython-specific so should be treated with the same attitude as >> changes to the bytecode. That means, do it conservatively, since there >> *are* people who like to write tools that manipulate or analyze this, >> and while they know they're doing something CPython and >> version-specific, they should not be broken by bugfix releases, since >> the people who *use* their code probably have no idea of the deep >> magic they're depending on. > > PyPy implements exactly the same AST. I think Jython also does, > although I'm not that sure. There were already issues with say > subclassing ast nodes were pypy was incompatible from CPython. That > said, it's completely fine from PyPy's perspective to change AST > between major releases.
Speaking as the author of PyPy's AST implementation, there are even some changes I'd like to make it easier! -- Regards, Benjamin _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
