On 11/24/07, Ryan Schmidt <ryandesign@macports.org> wrote:

> py25_cairo and py_cairo cannot be installed at the same time:
>
> # port install py25-cairo
> --->  Activating py25-cairo 1.4.0_1
> Error: Target org.macports.activate returned: Image error: /opt/
> local/include/pycairo/pycairo.h is being used by the active py-
> cairo port.  Please deactivate this port first, or use the -f flag
> to force the activation.
> Error: Status 1 encountered during processing.

Restated, the problem is that the meld port depends indirectly on
both py-cairo and py25-cairo, but the two cannot be installed
simultaneously. (I do not know whether it should be possible to
install arbitrary py-foo and py25-foo simultaneously.)

The graphic helped a good deal. I think I learned a while back that py-gtk2 is for python 2.4 while the more explicitly named py25-gtk2 goes with 2.5. So I think there is a redundancy, and potential conflict, there. 

Are there tools out there that help track these things down? The visuals are nice but they're not machine-readable, unfortunately ;-) 
--
Paul Beard / www.paulbeard.org/
<paulbeard@gmail.com/paulbeard@mac.com>