Function _validate_grabframe_kwargs

lib/matplotlib/animation.py:1827–1837

(savefig_kwargs)

def _validate_grabframe_kwargs(savefig_kwargs):
    if mpl.rcParams['savefig.bbox'] == 'tight':
        raise ValueError(
            f"{mpl.rcParams['savefig.bbox']=} must not be 'tight' as it "
            "may cause frame size to vary, which is inappropriate for animation."
        )
    for k in ('dpi', 'bbox_inches', 'format'):
        if k in savefig_kwargs:
            raise TypeError(
                f"grab_frame got an unexpected keyword argument {k!r}"
            )