[54989] trunk/dports/python

[Maximilian Nickel]

You are right, i forgot the uninstall case.
I probably could create a py26-scikits-module port that only installs
the common __init__.py file and that all py26-scikits-* depend upon.

On Thu, Aug 6, 2009 at 4:12 AM, Ryan Schmidt<ryandesign at macports.org> wrote:
>
> On Aug 5, 2009, at 12:12, mnick at macports.org wrote:
>
>> +post-destroot {
>> +    # Every scikit installs identical scikits/__init__.py. To avoid
>> conflicts
>> +    # install only if not already present
>> +    if {[file exists ${python.pkgd}/scikits/__init__.py]} {
>> +        file delete ${destroot}${python.pkgd}/scikits/__init__.py
>> +    }
>> +}
>
> Hmm, the problem here is that this introduces unstated dependencies between
> these ports. Assuming the __init__.py file is required by both ports,
> consider what happens if you install py26-scikits-audiolab (will install
> __init__.py), then install py26-scikits-ann (will not install __init__.py
> because it sees it's already there), and then uninstall
> py26-scikits-audiolab (will remove __init__.py), presumably leaving
> py26-scikits-ann nonfunctional. And the same situation happens if you
> interchange the port names in the previous sentence.
>
> I'm not sure how to handle this better, though.
>
>
>