The functions and classes in the humanfriendly package can be used to
make text interfaces more user friendly. Some example features:

 - Parsing and formatting numbers, file sizes, pathnames and timespans
   in simple, human friendly formats.
 - Easy to use timers for long running operations, with human friendly
   formatting  of the resulting timespans.
 - Prompting the user to select a choice from a list of options by
   typing the  option's number or a unique substring of the option.
 - Terminal interaction including text styling (ANSI escape sequences),
   user friendly rendering of usage messages and querying the terminal
   for its size