flake8

eendebakpt · eendebakpt · commit 2342fa46be30 · 2022-08-21T22:35:53.000+02:00
diff --git a/lib/matplotlib/artist.py b/lib/matplotlib/artist.py
@@ -1379,10 +1379,13 @@ def _get_tightbbox_for_layout_only(obj, *args, **kwargs):
     except TypeError:
         return obj.get_tightbbox(*args, **kwargs)
 
+
 def getdoc_pure(object):
-    """Get the documentation string for an object.
+    """
+    Get the documentation string for an object.
 
-    This is similar to `inspect.getdoc`, expect that the function `inspect.cleandoc` is not applied.
+    This is equal to `inspect.getdoc`, expect that the
+    function `inspect.cleandoc` is not applied.
     """
     try:
         doc = object.__doc__
@@ -1397,6 +1400,7 @@ def getdoc_pure(object):
         return None
     return doc
 
+
 class ArtistInspector:
     """
     A helper class to inspect an `~matplotlib.artist.Artist` and return
@@ -1524,16 +1528,16 @@ def number_of_parameters(func):
         return len(inspect.signature(func).parameters)
 
     @staticmethod
-    @lru_cache(maxsize=0)
+    @lru_cache(maxsize=None)
     def is_alias(class_):
         """Return whether method object *o* is an alias for another method."""
 
         ds = getdoc_pure(class_)
         if ds is None:
             return False
 
-        # docstring can have leading lines of whitespace, or whitespace at start of the first line
-        ds=ds.lstrip()
+        # uncleaned docstring can have leading of whitespace
+        ds = ds.lstrip()
 
         return ds.startswith('Alias for ')
 
