'Create a Poly3DCollection.
*verts* should contain 3D coordinates.
Keyword arguments:
zsort, see set_zsort for options.
Note that this class does a bit of magic with the _facecolors
and _edgecolors properties.'

def __init__(self, verts, *args, **kwargs):

    zsort = kwargs.pop(u'zsort', True)
    PolyCollection.__init__(self, verts, *args, **kwargs)
    self.set_zsort(zsort)
    self._codes3d = None
