A Progressbar library to provide visual progress to long running operations
Description
A text progress bar is typically used to display the progress of a long running
operation, providing a visual cue that processing is underway.
The ProgressBar class manages the current progress, and the format of the line
is given by a number of widgets.
The progressbar module is very easy to use, yet very powerful. It will also
automatically enable features like auto-resizing when the system supports it.
