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Re: [Kde-games-devel] kajongg in kdereview since 1 month

Subject: Re: [Kde-games-devel] kajongg in kdereview since 1 month
From: Sune Vuorela
Date: Wed, 17 Mar 2010 16:43:40 +0000 UTC
On 2010-03-17, Parker Coates <parker.coates@xxxxxxxxxxx> wrote:
> On Wed, Mar 17, 2010 at 03:29, Wolfgang Rohdewald wrote:
>> On Mittwoch 17 März 2010, Parker Coates wrote:
>>> ImportError: No module named zope.interface
>>>
>>> Is this a missing dependency check?
>>
>> Yes.
>>
>> Kajongg needs python-twisted-core
>> (on my kubuntu), and python-twisted-core
>> needs python-zope.interface.
>>
>> That is not the whole Zope, just one
>> small part which defines a class interface
>> mechanism.
>
> So I guess we have 2 options:
>
> 1. Check for the presence of these libraries at configure-time with
> CMake and skip building Kajonng if they are not found.
>
> 2. Add a runtime check for these libraries by trying to import them
> and catching any ImportErrors raised, then showing a nice friendly
> dialog explaining why Kajonng is about to gracefully shut down.
>
> I honestly don't know which one makes more sense, but I know uncaught
> ImportErrors are not an acceptable means of notifying the user that
> some dependencies are missing.

As a distribution packager, I really hate build time checks for runtime
needs, and normally we patch those checks out. (and sometimes forget to
add runtime dependencies, but that's a different issue)

/Sune

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