[ZODB-Dev] breaking out the transaction module from ZODB

[Jim Fulton]

On Nov 9, 2007, at 12:10 PM, Chris McDonough wrote:

>>>> In the meantime, I've gotten rid of 'zope.transaction' and I've  
>>>> created a new top-level 'transaction' package at http:// 
>>>> svn.zope.org/transaction/ .  All its tests pass.  It depends  
>>>> only on 'zope.interface', and requires 'zope.testing' for  
>>>> running the tests.
>>
>> Yay!
>>
>> I think you are pretty close to done -- if not done. Much thanks.   
>> I wish there was a way to state anti-requirements in setuptools.   
>> Then we could say that transaction had an anti-requirement for  
>> ZODB3 < 3.9.
>
> Yeah, especially given that I removed a deprecated method  
> (beforeCommitHook), so its installation may tend to break running  
> systems.  Maybe I should put it back, as systems will probably  
> continue to "just work" even if they have this installed for any  
> system that uses a recent Zope.

I'm not sure what's best here.  One option might be to write  
something that searches sys.path looking for and complaining about  
multiple transaction modules.

>
>> BTW, it would be nice to now remove the transaction package from  
>> the ZODB trunk and make it a dependency.
>
> Yes.  ZODB's setup.py is polyglotic... it works if setuptools isn't  
> installed.  I suspect it shouldn't continue to given that it now  
> has an external egg dependency.

My intent, if I can find time, is to rewrite the setup script from  
scratch and require setuptools.  I suspect it will be much simpler at  
that point.

Jim

--
Jim Fulton
Zope Corporation