Variable displays a live, named value with custom formatting.

Reach for it to track a value that is not the bar's own progress -- a loss, a learning rate, a username -- updated via bar.update(name=value). Compare Postfix for several values rendered together as one compact suffix, and DynamicMessage for the original name of this same widget.

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

.. demo:: widgets/variable

• :doc:`postfix` — several values rendered together as one compact suffix.
• :doc:`dynamic-message` — the original name for this same widget.