On Aug 22, 2007, at 8:16 AM, Christian Zagrodnick wrote:
Hi,
I'm doing things wich z3c.zalchemy and trying to find out why my
database connections are kept open even after unregistering
everything.
Given the following very simple test:
import sys
import zope.component
import zope.interface
class IUtil(zope.interface.Interface):
... pass
gsm = zope.component.getGlobalSiteManager()
utility = object()
sys.getrefcount(utility)
2
gsm.registerUtility(utility, IUtil)
sys.getrefcount(utility)
6
gsm.unregisterUtility(utility, IUtil)
True
sys.getrefcount(utility) # this fails
2
----------------------------------------------------------------------
File "/Users/zagy/development/z3c.zalchemy/src/z3c/zalchemy/tests/
dispose.txt", line 17, in dispose.txt
Failed example:
sys.getrefcount(utility) # this fails
Expected:
2
Got:
4
So there are now two more references than before register/
unregister. Am I missing something? Or is it leaking somewhere?
Here's what I get with the trunk of zope.component:
[EMAIL PROTECTED]:~/p/zope/component/trunk$ bin/py
>>> import sys, zope.component, zope.interface
>>> class IUtil(zope.interface.Interface): pass
...
>>> gsm = zope.component.getGlobalSiteManager()
>>> utility = object(); sys.getrefcount(utility)
2
>>> gsm.registerUtility(utility, IUtil); sys.getrefcount(utility)
5
>>> gsm.unregisterUtility(utility, IUtil); sys.getrefcount(utility)
True
2
So I can't reproduce what you are seeing.
Try adding:
>>> import gc; gc.collect()
before your last getrefcount call.
Jim
--
Jim Fulton mailto:[EMAIL PROTECTED] Python
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