Bug report

Bug summary
Settinganimated=True during a plot call is supposed to make matplotlib artists not be drawn unless explicitly called.Source

Withplt.plot([1,2,3], animated=True), callingplt.show() shows an empty axes.
However,plt.imshow([[1,2],[3,4], animated=True)does show an image.

I observe this behaviour with both the qt5 and tk backends.
Have I misunderstood something? Or is this a discrepancy?

Code for reproduction

Here is a full example:

importmatplotlib.pyplotaspltimportnumpyasnpfig, (ax1,ax2)=plt.subplots(ncols=2)imdata=np.random.random((20,20))lndata=imdata[0]im=ax1.imshow(imdata,animated=True)(ln,)=ax2.plot(lndata,animated=True)plt.show()

Actual outcome

Expected outcome
Two blank axes.

Matplotlib version

• Operating system: Win 10
• Matplotlib version: 3.1.3
• Matplotlib backend (print(matplotlib.get_backend())): Qt5Agg
• Python version: 3.8
• Jupyter version (if applicable):
• Other libraries: