[Python-Dev] possible CO_FUTURE_DECORATORS

[Robert Brewer]

[Working on the J2 patch]...

If we use a keyword, we need a __future__ and AFAICT a new
CO_FUTURE_DECORATORS flag. Should it just be 0x4000? 

#define CO_NOFREE       0x0040
/* XXX Temporary hack.  Until generators are a permanent part of the
   language, we need a way for a code object to record that generators
   were *possible* when it was compiled.  This is so code dynamically
   compiled *by* a code object knows whether to allow yield stmts.  In
   effect, this passes on the "from __future__ import generators" state
   in effect when the code block was compiled. */
#define CO_GENERATOR_ALLOWED    0x1000 /* no longer used in an essential
way */
#define CO_FUTURE_DIVISION    	0x2000
#define CO_FUTURE_DECORATORS    	0x4000


I'm mostly wondering why there's a big gap between CO_NOFREE and
CO_GENERATOR_ALLOWED.

Or is it a non-issue, pick-what-you-want?


Robert Brewer
MIS
Amor Ministries
fumanchu at amor.org