No plot window in matplotlib

Question

I just installed matplotlib in Ubuntu 9.10 using the synaptic package system. However, when I try the following simple example

>>> from pylab import plot; >>> plot([1,2,3],[1,2,3]) [<matplotlib.lines.Line2D object at 0x9aa78ec>] 

I get no plot window. Any ideas on how to get the plot window to show?

Answer 1

You can type

import pylab pylab.show() 

or better, use ipython -pylab.

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Since the use of pylab is not recommended anymore, the solution would nowadays be

import matplotlib.pyplot as plt  plt.plot([1,2,3])  plt.show()