from graphviz import Digraph
g = Digraph('G', filename='Markov', engine='dot')
g.edge("0", "0",label="1 - μ")
g.edge("1", "0",label="λ")
g.edge("1", "1",label="1 - λ")
g.edge("0", "1",label="μ")
g.format="svg"
g.render(view=True)