# Paste your code hereimportmatplotlib.pyplotaspltplt.waitforbuttonpress()

Python 3.7.4 (default, Aug 13 2019, 20:35:49) [GCC 7.3.0] :: Anaconda, Inc. on linuxType "help", "copyright", "credits" or "license" for more information.>>> import matplotlib.pyplot as plt>>> plt.waitforbuttonpress()QTimer::singleShot: Timers cannot have negative timeoutsTrue>>> ```**Expected outcome**no warning**Matplotlib version**<!--Please specify your platform and versions of the relevant libraries you are using:-->  * Operating system: Linux  * Matplotlib version: 3.1.1  * Matplotlib backend (`print(matplotlib.get_backend())`):Qt5Agg  * Python version: 3.7.4  * Jupyter version (if applicable):  * Other libraries: <!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--><!--If you installed from conda, please specify which channel you used if not the default-->