flexible package manager -- runtime library

 This is a Cupt library implementing high-level package manager for Debian and
 derivatives. It's written with flexibility and reliability in mind and uses
 dpkg as the back-end.
 .
 Provides:
  - parsing and manipulating configuration info;
  - parsing indexes metadata info;
  - version strings comparison;
  - inspection of the binary and source package' versions;
  - parsing and querying info about installed packages;
  - parsing and working with relations and relation expressions;
  - download manager and downloaders for some schemes;
  - problem resolver;
  - worker for modifying system state.
 .
 See also description of 'cupt' package for more information.