python: adding missing runtime dependency python-io to python-pprint
When trying to import python-pprint on a minimal image, it reports that
the cStringIO python module is missing.
This is provided with python-io, so we add python-io as runtime
dependency.
The complete observed trace was:
Python 2.7.3 (default, Apr 4 2013, 07:45:36)
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pprint
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/pprint.py", line 40, in <module>
from cStringIO import StringIO as _StringIO
ImportError: No module named cStringIO
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@oss.bmw-carit.de> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
