from graphviz import Digraph
import os
NUM = 123
NAME = 'mod_' + str(NUM)
mod = Digraph(NAME)
mod.background = 'black'
#Phase one: render the main mod using 'circo' engine
mod.node('0', style='filled')
for i in range(NUM):
mod.edge(str(i), str((i + 1) % NUM), color='blue')
#Save the result of the graphviz rendering command to the file 'mod.gv'
mod.engine = 'circo'
mod.format = 'gv'
mod.render(NAME)
#Phase One point Five: Do some processing to extract the positioned vertices and edges
with open(NAME + '.gv') as f:
circo_src = f.read()
circo_src = circo_src.split('\n')
#You don't want the first and last line
circo_src = circo_src[1:len(circo_src) - 2]
#You don't want the semicolons
for i in range(len(circo_src)):
circo_src[i] = circo_src[i].replace(';', '')
for item in circo_src:
print(item)
