I am am trying to run the Quandl module on a virtualenv which I have uninstalled packages only pandas and then Quandl,
I am running Python 2.7.10 - I have uninstall
check whether it exists with the installed modules by typing
pip list
in the command prompt and if there is no module with the name quandl then type
pip install quandl
in the command prompt . Worked for me in the jupyter