Note
Click here to download the full example code
Read and write graphs.ΒΆ
Read and write graphs.

Out:
#/build/python-networkx-hczO70/python-networkx-2.2/examples/basic/plot_read_write.py
# GMT Fri Sep 27 23:26:24 2019
#
# Author: Aric Hagberg (hagberg@lanl.gov)
# Copyright (C) 2004-2018 by
# Aric Hagberg <hagberg@lanl.gov>
# Dan Schult <dschult@colgate.edu>
# Pieter Swart <swart@lanl.gov>
# All rights reserved.
# BSD license.
import sys
import matplotlib.pyplot as plt
import networkx as nx
G = nx.grid_2d_graph(5, 5) # 5x5 grid
try: # Python 2.6+
nx.write_adjlist(G, sys.stdout) # write adjacency list to screen
except TypeError: # Python 3.x
try:
nx.write_adjlist(G, sys.stdout.buffer) # write adjacency list to screen
except AttributeError: # workaround for sphinx_gallery abusing sys.stdout
pass
# write edgelist to grid.edgelist
nx.write_edgelist(G, path="grid.edgelist", delimiter=":")
# read edgelist from grid.edgelist
H = nx.read_edgelist(path="grid.edgelist", delimiter=":")
nx.draw(H)
plt.show()
Total running time of the script: ( 0 minutes 0.033 seconds)