On 4/12/2013 10:51 PM, Steven D'Aprano wrote: > And two examples from asm-generic/errno.h: > > #define EWOULDBLOCK EAGAIN /* Operation would block */ > #define EDEADLOCK EDEADLK >
That's actually even better of an example than you may have realized because historically EWOULDBLOCK != EAGAIN[1]. So, there very well may need to exist such code as: if <some hairy platform>: _EAGAIN = <X> _EWOULDBLOCK = <Y> else: _EAGAIN = _EWOULDBLOCK = <X> class Errno(Enum): EAGAIN = _EAGAIN EWOULDBLOCK = _EWOULDBLOCK I don't think it's all that uncommon that enum values that represent states of a system get merged or renamed over time, and this one is a great example of that. [1] http://www.gnu.org/savannah-checkouts/gnu/libc/manual/html_node/Error-Codes.html#index-EAGAIN-97 -- Scott Dial [email protected] _______________________________________________ Python-Dev mailing list [email protected] http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com