Read and write graphs.ΒΆ

Read and write graphs.

Traceback (most recent call last):
  File "/builddir/build/BUILD/networkx-networkx-2.2/examples/basic/plot_read_write.py", line 27, in <module>
    nx.write_adjlist(G, sys.stdout.buffer)  # write adjacency list to screen
AttributeError: 'LoggingTee' object has no attribute 'buffer'
# 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
    nx.write_adjlist(G, sys.stdout.buffer)  # write adjacency list to screen
# 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 0.000 seconds)

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