UserWarning: module dap was already imported from None
I installed python-matploglib and python-mpltoolkits.basemap using apt,
but when I tried to import Basemap using from mpltoolkits.basemap import
Basemap, the following warning shows up:
usr/lib/pymodules/python2.7/mpl_toolkits/__init__.py:2: UserWarning: Module dap was already imported from None, but /usr/lib/python2.7/dist-packages is being added to sys.path
__import__('pkg_resources').declare_namespace(__name__)