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Editorial Team
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Asked: 2026-05-23T05:58:02+00:00

When I am in an interactive python session (usually IPython), the following commands: from

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When I am in an interactive python session (usually IPython), the following commands:

from matplotlib import pyplot as plt
plt.plot([1,2,3,4])

do not automatically raise a window, showing the plot. The only way I can make matplotlib actually raise the window is using show(), which also captures all input until I close the window destroying the plot. Now I have to give all my plot commands before I can see any result, which is a major nuisance. On OSX, I do not have this issue.

The backend I’m using is TkAgg. Using draw() and ion() calls has no effect.

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1 Answer

  1. Editorial Team

    If you use IPython pylab mode, this works:

    In [1]: plot([1,2,3,4])
Out[1]: [<matplotlib.lines.Line2D object at 0x020F75B0>]

    there is not need for show() nor matplotlib import.

    In IPython normal mode you can make your session interactive. This also works:

    In [4]: from matplotlib import interactive

In [5]: interactive(True)

In [6]: from matplotlib import pyplot as plt

In [7]: plt.plot([1,2,3,4])
Out[7]: [<matplotlib.lines.Line2D object at 0x00F89D50>]
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