You should first create a new environment in conda. From the terminal, type:
$ conda create --name my_env pandas ipython
Python will be installed automatically as part of this installation. After selecting [y] to confirm, you now need to activate this environment:
$ source activate my_env
On Windows I believe it is just:
$ activate my_env
Now, confirm installed packages:
$ conda list
Finally, start python and run your session.
$ ipython