Matplotlib plt.show(block=False) opens black window

Miss Understood

6/25/23, 3:45 PM

Matplotlib plt.show(block=False) gives me a black window when plotting something that normally works with plt.show(block=True). With my previous Ubuntu install I could always run plt.show(block=False) without any issues.

Here is a simple piece of code that gives me the black screen:

    y = np.random.random(10)
    x = np.linspace(1, len(y), len(y))
    plt.plot(x, y)
    plt.show(block=False)
    time.sleep(5)

The graph shows properly when I use block=True, but gives a black window in the code above. This happens in both python3 and IPython.

Extra information:

Fresh install of Ubuntu 20.04.4
Python 3.8.10
matplotlib version 3.5.1
tested with backends: [QtAag, Qt5Aag, TkAgg], with same results

Any help would be much appreciated, I mostly use the block=False argument to view/analyze the data whilst zooming-in etc. on the graph.

With kind regards,

0 + 0

python3

ipython

matplotlib

Elon Musk

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