Bug summary

When plt.polar() is called while the current axes are a PolarAxes object, the call just returns the axes again without plotting the new data.

The code for polar() in pyplot.py is easily fixed by changing "return ax" to "return ax.plot(*args, **kwargs)".

Code for reproduction

import matplotlib.pyplot as plt

h1 = plt.polar([0],[1],'ro')

h2 = plt.polar([1.57],[.5], 'bo')

plt.show()

Actual outcome

Only the first point is plotted. Note that h1 is a list of length 1 of Line2D objects, while h2 is a PolarAxesSubplot object.

Expected outcome

Both points should be plotted. Both h1 and h2 should be lists of length 1 of Line2D objects.

Operating system

Windows

Matplotlib Version

3.4.3

Matplotlib Backend

No response

Python version

3.9

Jupyter version

No response

Other libraries

No response

Installation

conda

Conda channel

No response