Hi all,

I am a beginner with matplotlib and doing my first steps with python
plotting.
However, I learned that pyplot.show really forces the display of already
existing plots.

For instance, when I type 
In[2]: pyplot.plot([1,2,3])
Out[2]: [<matplotlib.lines.Line2D object at 0x2e33850>] 

nothing happens until I type

In[3]: pyplot.show()

After that, the interpreter halts until I close the new figure window. Only
closing enables the interpreter to continue with my later input. Moreover,
typing 
In[4]: pyplot.plot([1,2,3])

again would display the figure immediately. Seems the gtk engine or
something else must be started up by pyplot.show once and, once running, it
displays everything else after that instantly.
How can I tweak pyplot in such way that it would display my figures on the
very first pyplot.plot call without halting the input?

Thank you in advance for your help,
Thomas

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