Setting configuration values from the dictionary returned by astropy.config.get_config fails #1567
Description
If I try setting a configuration value at run time like this:
from astropy.config import get_config
items = get_config('astropy.utils.data')
items['dataurl'].set('http://astropydata.mywebsite.com')it fails with:
ERROR: AttributeError: 'str' object has no attribute 'set' [IPython.core.interactiveshell]
in both 0.2.4 and 0.3.dev5708.
Setting the configuration using the other method described in the documentation works:
from astropy.utils.data import DATAURL
DATAURL.set('http://astropydata.mywebsite.com')