UnitProgress shows a count against its total with a unit label.

Reach for it when the count needs a unit: "12 of 24 files". unit sets the label and unit_scale enables 1024-based scaling for large counts.

.. autoclass:: progressbar.widgets.UnitProgress
   :members:
   :show-inheritance:
   :no-index:

.. demo:: widgets/unit-progress

• :doc:`simple-progress`: the same idea without a unit label.
• :doc:`data-size`: a single scaled byte value, no total.
• :doc:`counter`: the same count with no total to compare against.