diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
index bc24400cae49..c6f902489952 100644
--- a/lib/matplotlib/axes/_base.py
+++ b/lib/matplotlib/axes/_base.py
@@ -2730,7 +2730,7 @@ def grid(self, b=None, which='major', axis='both', **kwargs):
 
     def ticklabel_format(self, *, axis='both', style='', scilimits=None,
                          useOffset=None, useLocale=None, useMathText=None):
-        """
+        r"""
         Change the `~matplotlib.ticker.ScalarFormatter` used by
         default for linear axes.
 
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
index 32c858452eb2..1c0fac55914c 100644
--- a/lib/matplotlib/pyplot.py
+++ b/lib/matplotlib/pyplot.py
@@ -1704,7 +1704,6 @@ def rgrids(*args, **kwargs):
     return ( silent_list('Line2D rgridline', lines),
              silent_list('Text rgridlabel', labels) )
 
-
 def thetagrids(*args, **kwargs):
     """
     Get or set the theta gridlines on the current polar plot.