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So I got a small problem, but yeah, I need an answer. A created a plot with matplotlib, and after the showing I want to close it. Of course, I visited some documentation (e.g.: https://matplotlib.org/3.1.1/api/_as_gen/matplotlib.pyplot.close.html), a lot of forums, like that: matplotlib close does not close the window, but my code isn't working for me.

I used the plt.ion() function, but when I tryed it, the plot wasn't appearing, I just saw an empty window. After that, I used the plt.show(block = False) and I again got an empty window.

You can see the code above:

#Showing

plt.ion()
plt.show(block = False)

time.sleep(10)

plt.close("all")

As you can see, there's a delay, I would like to see a plot for ten seconds, and after close it.

Feel free, to comment to me, I appreciate that, thank you.

seralouk
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petya0927
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1 Answers1

12

Do not use time.sleep(). Use the plt.pause() function.

Details/Explanation: First, you need plt.show(block=False) so that the plot is not blocked and the code executes the next command.

Second, the second command i.e. plt.pause(3) pauses the plot for 3 seconds and then goes to the next line/command.

Finally, the last line/command, plt.close("all") closes the plot automatically.

This is a script (.py) that plots an imshow and automatically close it after 3 seconds.

import matplotlib.pyplot as plt
import numpy as np

X = np.random.rand(10,10)

plt.imshow(X)

plt.show(block=False)
plt.pause(3) # 3 seconds, I use 1 usually
plt.close("all")
seralouk
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