Cloning this repository:

git clone git://gitorious.org/~ashkyd/pygtk-tutorial/ashkyds-pygtk-tutorial.git ashkyds-pygtk-tutorial
cd ashkyds-pygtk-tutorial

Add this repository as a remote to an existing local repository:

git remote add ashkyds-pygtk-tutorial git://gitorious.org/~ashkyd/pygtk-tutorial/ashkyds-pygtk-tutorial.git
git fetch ashkyds-pygtk-tutorial
git checkout -b my-local-tracking-branch ashkyds-pygtk-tutorial/master_or_other_branch