Package Discovery and Resource Access using pkg_resources

 The pkg_resources module provides an API for Python libraries to
 access their resource files, and for extensible applications and
 frameworks to automatically discover plugins. It also provides
 runtime support for using C extensions that are inside zipfile-format
 eggs, support for merging packages that have separately-distributed
 modules or subpackages, and APIs for managing Python's current
 "working set" of active packages.