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This is a simple example to extract (time) and (voltage) channels from an output (.out) file and plotting them using matplotlip. Then saving the resulting plot in a pdf file. You can manipulate it to extract and plot any other data you need.

import dyntools
import matplotlib.pyplot as plt

outfile = r"""test.out"""
chnfobj = dyntools.CHNF(outfile)
short_title, chanid, chandata = chnfobj.get_data()

t = chandata['time']
v = chandata[1]              #based on the channel identifier set in the dynamic simulation

fig = plt.figure()
fig.patch.set_facecolor('0.8')
ax1.plot(t,v,linestyle='-', linewidth=1, color='green',label="Voltage")
plt.grid(linestyle='--', color='grey',linewidth=0.5)
plt.xlabel("Time")
plt.ylabel("Voltage")
plt.legend()
axes = plt.gca()
axes.set_facecolor('w')
axes.set_ylim([0.6,1.2])
axes.set_xlim([0,10])
plt.savefig(r"""figure.pdf""",dpi=fig.dpi,facecolor='0.8')
plt.show()