Can't use yolk in the Ubuntu stack

I'm using the BitNami OSQA stack for VMware.

AMI: BitNami OSQA Stack 1.0rc-1 (Ubuntu 12.04

When I installed yolk..

sudo pip install yolk

it said successfully installed.. but it also gave a warnings like this:

warning: no files found matching '*.txt' under directory 'tests'
warning: no files found matching '*.conf' under directory 'docs'
warning: no files found matching '*.css_t' under directory 'docs'
warning: no files found matching 'indexsidebar.html' under directory 'docs'

then when I try to run yolk .. I get shared library error:

bitnami@linux:/opt/bitnami/apps/osqa$ yolk -l

/opt/bitnami/python/bin/.python2.7.bin: error while loading shared libraries: libpython2.7.so.1.0: cannot open shared object file: No such file or directory

Please advise.. thanks