Problem

I would like to use named arguments in FuncAnimation.

Currently:

ani = matplotlib.animation.FuncAnimation(
  fig, update, frames=len(raw_history),
  interval=500, repeat=True, repeat_delay=1,
  fargs=(raw_history, action_history, style)
)

This would be slightly cumbersome when I change the order / type of arguments my function accepts. I could use functools to attach named parameters to the function update, but it would be nice if FuncAnimation can support this feature.

Proposed Solution

ani = matplotlib.animation.FuncAnimation(
  fig, update, frames=len(raw_history),
  interval=500, repeat=True, repeat_delay=1,
  fkwargs={'raw_history': raw_history, 'action_history': action_history, 'style': style}
)

We keep the fargs parameter, but we also add an fkwargs for keyword parameters.