您可以将图形另存为pdf，然后使用 subprocess 打印pdf.在* nix上，可以使用 lpr :

You could save the figure as a pdf, then use subprocess to print the pdf. On *nix, lpr could be used:

import matplotlib.pyplot as plt
import numpy as np
import subprocess
import shlex

n=20
x=np.linspace(0,np.pi,n)
y=np.sin(x)
plt.plot(x,y)
fname='/tmp/test.pdf'
plt.savefig(fname)
proc=subprocess.Popen(shlex.split('lpr {f}'.format(f=fname)))