pip install openpyxl fails
Created originally on Bitbucket by Anonymous
Ubuntu 10.04, Python 2.6.5.
File "openpyxl/shared/init.py", line 31, in
from openpyxl.shared import xmltools
File "openpyxl/shared/xmltools.py", line 74, in
from lxml.etree import (
ImportError: cannot import name register_namespace