[Zope-Coders] Problem with importing ZCatalog in 2.7

[Shane Hathaway]

Fred L. Drake, Jr. wrote:
> Andreas Jung writes:
>  > Could someone please check this issue? This issue is important because at
>  > the moment it is impossible to import the ZCatalog  in 2.7 *sigh*
> 
> That's not what your initial report showed.  It showed trying to run
> an isolated test case that assumed the persistence machinery had been
> initialized (which usually happens by importing ZODB).
> 
> This is a function of the Persistence module being expected to supply
> a symbol that it doesn't initialize.  That's a very weird thing for it
> to do, but I'm not going to fight the fight to get that changed!

Actually, that fight is long over.  We can make the Persistence package 
depend on ZODB now. ;-)

Unfortunately, I have a strong suspicion that won't actually solve 
Andreas' issue, since there are other places in the code that use a 
similar anti-pattern.  The current recommendation is to make sure the 
following code comes first:

import Zope
Zope.startup()

It's safe to put that at the top of a test module that depends heavily 
on Zope.

Shane