Python PyCallGraph.PyCallGraphException Graphviz

Question

Im trying to use the pycallgraph library for Python on my Windows commandline

from pycallgraph import PyCall Graph
from pycallgraph.output import GraphvizOutput

with PyCallGraph(output=GraphvizOutput()):
    for i in range(0,11):
        print(str(i) + " times looped")

After executing this i get the following error: 'The command "{}" is required to be in your path.'.format(cmd)) pycallgraph.exceptions.PyCallGraphException: The command "dot" is required to be in your path.

I know that i need to install dot, but i don't know how to do it