On Fri, Feb 20, 2009 at 1:45 PM, Brett Cannon <br...@python.org> wrote:
> But there is another issue with this: the pure Python code will never call
> the extension code because the globals will be bound to _pypickle and not
> _pickle. So if you have something like::
>
> # _pypickle
> def A(): return _B()
> def _B(): return -13
>
> # _pickle
> def _B(): return 42
>
> # pickle
> from _pypickle import *
> try: from _pickle import *
> except ImportError: pass
>
> If you import pickle and call pickle.A() you will get -13 which is not what
> you are after.
Maybe I've missed this and someone else already suggested it, but
couldn't we provide a (probably C-coded) function
``replace_globals(module, globals)`` that would, say, replace the
globals in _pypickle with the globals in pickle? Then you could write
something like::
from _pypickle import *
try:
from _pickle import *
module = __import__('_pickle')
except ImportError:
module = __import__('_pypickle')
replace_globals(module, globals())
Steve
--
I'm not *in*-sane. Indeed, I am so far *out* of sane that you appear a
tiny blip on the distant coast of sanity.
--- Bucky Katt, Get Fuzzy
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