[Zope3-dev] Re: zope.viewlet breaking buildout?

[David Pratt]

Thanks Jim. Where is PILwoTk located at the moment? I'll look to pull it 
in with a dev egg in the short term in the buildout to satisfy the 
dependency until this is more widely available.

With all the packages and dependencies to look after in a buildout, 
particularly for a larger zope app, something like a pre-flight (that 
could be executed as an option to a buildout) might be valuable. I think 
something that could analyze, assess, verify, and print dependency 
information without running a complete buildout might be the ticket if 
it is possible.

The general idea comes to me from other systems I have used in the past 
(such as xml publishing toolchains) where you run a pre-flight to 
determine whether large documents will run through the toolchain 
successfully without actually constructing the document.

Regards,
David

Jim Fulton wrote:
> 
> On Apr 16, 2007, at 4:35 PM, Philipp von Weitershausen wrote:
> 
>> Dave, please don't reply to other threads. Thread association doesn't 
>> usually happen by Subject line but by mail headers...
>>
>> David Pratt wrote:
>>> Hi. I have already managed to repackage a couple of apps using eggs 
>>> only zope (zc.zope3recipes on svn.zope.org). Yesterday, I began 
>>> creating another eggs-only application as a test however this app 
>>> requires z3c.viewlet. The z3c.viewlet package has a dependency upon 
>>> zope.viewlet. When running the buildout stopped during the zope egg 
>>> installation. I deleted the zope.viewlet egg and reran the buildout 
>>> and it stopped at the same point. Hoping someone can advise if this a 
>>> possible problem with zope.viewlet or how I might debug this a bit 
>>> more to complete the buildout. Many thanks.
>>> Regards,
>>> David
>>> The error in the buildout is as follows:
>>> buildout: Installing testapp
>>> zc.buildout.easy_install: Getting new distribution for zope.viewlet
>>> zc.buildout.easy_install: Got zope.viewlet 3.4dev-r73833
>>> Couldn't find index page for 'PILwoTk' (maybe misspelled?)
>>> zc.buildout.easy_install: Getting new distribution for PILwoTk
>>> While:
>>>   Installing testapp
>>>   Getting distribution for PILwoTk
>>> Error: Couldn't find a distribution for PILwoTk.
>>
>> zope.viewlet doesn't depend on PILwoTk. The above output from buildout 
>> doesn't even say that it is (it was getting a *new* distribution for 
>> zope.viewlet accidentally at the same time, it seems). A google search 
>> for PILwoTk only turned up references to z3c.image [1].
>>
>> [1] 
>> http://svn.zope.org/z3c.image/trunk/setup.py?rev=73464&sortby=log&view=diff&r1=73464&r2=73463&p1=z3c.image/trunk/setup.py&p2=/z3c.image/trunk/setup.py 
>>
> 
> Buildout needs to provide more help in this situation.
> 
> PILwoTk is a special distribution of PIL that I created that installs 
> with setuptools (easy_install or buildout) and doesn't require Tk. :)
> 
> I'd be happy to make it more widely available.  AFAIK, there isn't any 
> other distribution of PIL that installs cleanly with setuptools.
> 
> Jim
> 
> -- 
> Jim Fulton            mailto:jim at zope.com        Python Powered!
> CTO                 (540) 361-1714            http://www.python.org
> Zope Corporation    http://www.zope.com        http://www.zope.org
> 
> 
>