slidedeck.py gives image-not-found or no-module-named-flask error

[Benjamin Gilbert]

Hi Andrew,

On 03/26/2013 11:16 PM, Andrew Packer wrote:
> OSError: dlopen(libopenslide.0.dylib, 6): Library not loaded:
> /opt/local/lib/libpng14.14.dylib
>    Referenced from: /usr/local/lib/libopenslide.0.dylib
>    Reason: image not found

It looks as though you previously installed OpenSlide from source and 
haven't removed it.  The old version is being loaded and is failing to 
find an old version of libpng that used to be shipped by MacPorts. 
Remove the hand-installed OpenSlide with "sudo rm -f 
/usr/local/bin/openslide* /usr/local/lib/*openslide* 
/usr/local/share/man/man1/*openslide*" and try again.

> On the other hand when I try using the MacPorts Python Launcher to
> launch slidedeck.py, I get the following.
>
> ImportError: No module named flask

Your system has two installations of Python: the one that comes with Mac 
OS X and the one installed by MacPorts.  Flask is installed under 
/opt/local, which is the MacPorts copy, so that's the Python you want. 
Apparently the Python Launcher is giving you the other one.

--Benjamin Gilbert