diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
index dc29c4791046..54054970c8a3 100644
--- a/lib/matplotlib/figure.py
+++ b/lib/matplotlib/figure.py
@@ -1822,11 +1822,12 @@ def gca(self, **kwargs):
"3.0",
"Calling `gca()` using the same arguments as a "
"previous axes currently reuses the earlier "
- "instance. In a future version, a new instance will "
- "always be created and returned. Meanwhile, this "
- "warning can be suppressed, and the future behavior "
- "ensured, by passing a unique label to each axes "
- "instance.")
+ "instance.\n"
+ "In a future version, a new instance will "
+ "always be created and returned.\n"
+ "Meanwhile, this warning can be suppressed, and the "
+ "future behavior ensured, by passing a unique label "
+ "to each axes instance.")
return cax
else:
warnings.warn('Requested projection is different from '
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
index 791c9bf90ad9..e69555baffb9 100644
--- a/lib/matplotlib/pyplot.py
+++ b/lib/matplotlib/pyplot.py
@@ -2283,12 +2283,15 @@ def polar(*args, **kwargs):
strings, as in :func:`~matplotlib.pyplot.plot`.
"""
- # If an axis already exists, check if it has a polar projection
+ # If an axes already exists, check if it has a polar projection
if gcf().get_axes():
if not isinstance(gca(), PolarAxes):
warnings.warn('Trying to create polar plot on an axis that does '
'not have a polar projection.')
- ax = gca(polar=True)
+ ax = gca()
+ else:
+ ax = gcf().add_subplot(1, 1, 1, polar=True)
+
ret = ax.plot(*args, **kwargs)
return ret
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