co_freevars question

[Robert Brewer]

Playing around with func_code objects today, I typed:
()

I would have expected co_freevars to be ('y', ) rather like:

[k for k in f.func_globals if k in f.func_code.co_names and k not in

f.func_code.co_varnames]
['y']

What am I misunderstanding? Under what circumstances does co_freevars
actually possess any items?


Robert Brewer
MIS
Amor Ministries
(e-mail address removed)