Addresses #21. Updates pysatCDF to be consistent with pysat/pysat#369.
With pysat 3.0.0, the convenience methods imported from pandas will be removed. pysatCDF needs to be b updated so that it no longer imports DataFrame, etc, from pysat but from pandas.
Also updates python versions in Travis CI testing.
Addresses #21. Updates pysatCDF to be consistent with pysat/pysat#369.
With pysat 3.0.0, the convenience methods imported from pandas will be removed. pysatCDF needs to be b updated so that it no longer imports
DataFrame
, etc, from pysat but from pandas.Also updates python versions in Travis CI testing.