2. Prerequisites

SumTimes has been tested on versions 2.7 and 3.4 of Python. There are two Python dependencies:

• DendroPy [1]
• PyYAML

If you do not have these modules, you will need to install them before you can use SumTimes. You can do this via the command line:

$ sudo pip install dendropy
$ sudo pip install pyyaml

If you do not have admin privileges, or you prefer to install locally, you can use:

$ pip install --user dendropy
$ pip install --user pyyaml