Ticket #13 (new enhancement)

It would be great to be able to get the edges of the callgraph so that they can be processed with other tools. I've added the following function:

def get_calltree(stop=True):
    """Compiles the edges for the graph."""

    edges = list()

    if stop:
        stop_trace()
        
        
    for fr_key, fr_val in call_dict.items():
        if fr_key == '':
            continue

        for to_key, to_val in fr_val.items():
        
            edges.append((fr_key, to_key))

    return edges

It would be great to have this functionality on pycallgraph, maybe expanded so that the node names include the call count and other statistics.