title: How do I clone a conda environment from one python release to another?
body: <p>I have a python 2.7 conda environment and would like to create an equivalent environment with python 3.4.  I am aware of the <code>--clone</code> option when creating environments, but it won't accept additional arguments, like <code>python=3.4</code>.  Is there a way to do this automatically?  I thought about trying to use the output from <code>conda list --export</code>, but that also encodes the python release.</p>