DOC: add comment about use of lambdas to unpack args/kwrags

tacaswell · tacaswell · commit 80355e03d64e · 2017-08-28T15:20:27.000-04:00
credit goes to @anntzer
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -2005,7 +2005,8 @@ def bar(self, *args, **kwargs):
 
         """
         kwargs = cbook.normalize_kwargs(kwargs, mpatches._patch_alias_map)
-
+        # this is using the lambdas to do the arg/kwarg unpacking rather
+        # than trying to re-implement all of that logic our selves.
         matchers = [
             (lambda x, height, width=0.8, bottom=None, **kwargs:
              (False, x, height, width, bottom, kwargs)),
@@ -2313,6 +2314,8 @@ def barh(self, *args, **kwargs):
         %(Rectangle)s
 
         """
+        # this is using the lambdas to do the arg/kwarg unpacking rather
+        # than trying to re-implement all of that logic our selves.
         matchers = [
             (lambda y, width, height=0.8, left=None, **kwargs:
              (False, y, width, height, left, kwargs)),
