Use when rigging a character, creature or prop in Blender through Python: "rig this character", Rigify metarig fitting or generation errors, automatic weights or "Bone Heat Weighting failed", weight painting fixes, clothes that do not follow, IK/FK switch, foot roll, twist bones, drivers and custom properties, corrective shape keys, a stylized face rig, a mechanical or hard-surface rig, or testing how a rig deforms.
