Sure:

* The six module is already in the `install_requires` attribute in setup.py. So `pip install -e .` or `python setup.py develop` will install it for local development.
* The nose module is only required for local development and it wasn't documented anywhere.

Basically, to setup a development environment for byterun

```sh
# create and activate a virtualenv
$ pip install -r requirements.txt
$ pip install -e .
```

will be enough with these changes.