On Nov 6, 2007, at 5:02 AM, Eric Bréhault wrote:
Hello,
WIth Zope2, when I need to create or read a file in the filesystem,
I usually go in /myzopeinstance/var directory
and to find it is pretty easy:
import os
os.environ['CLIENT_HOME']
But in Zope3, CLIENT_HOME or INSTANCE_HOME are no longer provided
in os.environ
I had a look to different source code, and apparently the solution
is to use the path of the current file to get the instance home, so
we have code like this:
os.path.normpath(
os.path.join (os.path.dirname(__file__),
os.pardir, os.pardir, os.pardir, os.pardir))
Is there any easier (and cleaner) way to do it ?
Yes. If you want to have a directory like this:
- Create it (or arrange for it to be created lazily)
- Configure it in zope.conf:
<product-config var>
directory /location/of/directory
<product-config>
- To get this information from Python:
import zope.app.appsetup.product
var_dir = zope.app.appsetup.product['var']['directory']
As has been pointed out, there is no equivalent of an instance home
in Zope 3, because we don't want to impose such a restrictive model,
but you can easily provide such a model for yourself if you wish.
Jim
--
Jim Fulton
Zope Corporation
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