gravis is not working with a subclass derived from a valid graph

[lnajman]

Here is a minimal example:

The following is working:

import igraph as ig
import gravis as gv

lnames = ['0', '1']
edgelist = [('0', '1')]
graph = ig.Graph(len(lnames),  vertex_attrs={'name': lnames})
graph.add_edges(edgelist)
gv.vis(graph)

The following is not:

class mygraph(ig.Graph):
  def __init__(self, lnames, edgelist):
    super().__init__(len(lnames), vertex_attrs={'name': lnames})
    self.add_edges(edgelist)

graph = mygraph(lnames, edgelist)
gv.vis(graph)

This returns

ValueError: The provided data seems not to be in a valid graph format.

Is there a workaround?

[lnajman]

A ugly workaround is

graph = mygraph(lnames, edgelist)
print(graph.__class__)
graph.__class__ = ig.Graph
gv.vis(graph)

But this is really ugly.