[Python-Dev] Re: A surprising case of cyclic trash

[Neil Schemenauer]

An even simpler example:

>>> import sys
>>> d = {}
>>> print sys.getrefcount(d)
2
>>> exec("def f(): pass\n") in d
>>> print sys.getrefcount(d)
3
>>> d.clear()
>>> print sys.getrefcount(d)
2

exec adds the function to the dictionary.  The function
references the dictionary through globals.

    Neil

-- 
"If elected mayor, my first act will be to kill the whole lot of
you, and burn your town to cinders!" -- Groundskeeper Willie