pip
A tool for installing Python packages.
Project Source: https://github.com/pypa/pip
Project Documentation: https://pip.pypa.io/en/latest/

sublime_package_control
A Sublime Text 2/3 package manager for easily discovering, installing, upgrading and removing packages.
Project Source: https://github.com/wbond/sublime_package_control
Project Homepage: https://sublime.wbond.net/

package_control_channel
Default channel file for Package Control.
Project Source: https://github.com/wbond/package_control_channel
Project Homepage: https://sublime.wbond.net/docs/developers