Nick Coghlan <ncogh...@gmail.com> added the comment:
The current oddity where the names will always appear in the reverse of
declaration order comes from a C level loop in the frame object's "map_to_dict"
helper function that loops in reverse [1]:
...
for (j = nmap; --j >= 0; ) {
...
}
While I haven't tried reversing that yet, I haven't found anything to indicate
that it *needs* to be a reverse iteration - it looks like Guido just wrote it
that way back in 1994 [2], and everyone that touched the code since then
preserved the original iteration order since they didn't have a compelling
reason to change it.
[1] https://github.com/python/cpython/blob/master/Objects/frameobject.c#L794
[2]
https://github.com/python/cpython/commit/1d5735e84621a7fe68d361fa0e289fa2c3310836
----------
nosy: +ncoghlan
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue32690>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
