conda create -n NAME_OF_YOUR_ENV python=3.6
it will create a virtual env with python 3.6
conda env remove -n NAME_OF_YOUR_ENV
it will remove your virtual env
conda create -n NAME_OF_YOUR_ENV python=3.6
it will create a virtual env with python 3.6
conda env remove -n NAME_OF_YOUR_ENV
it will remove your virtual env