matplotlib
diff --git a/‎lib/mpl_toolkits/axes_grid1/axes_divider.py
Lines changed: 6 additions & 8 deletions b/‎lib/mpl_toolkits/axes_grid1/axes_divider.py
Lines changed: 6 additions & 8 deletions
diff --git a/‎lib/mpl_toolkits/mplot3d/axes3d.py
Lines changed: 1 addition & 1 deletion b/‎lib/mpl_toolkits/mplot3d/axes3d.py
Lines changed: 1 addition & 1 deletion
@@ -250,6 +250,8 @@ def new_locator(self, nx, ny, nx1=None, ny1=None):
             ny1 if ny1 is not None else ny + 1)
 
     def append_size(self, position, size):
+        _api.check_in_list(["left", "right", "bottom", "top"],
+                           position=position)
         if position == "left":
             self._horizontal.insert(0, size)
             self._xrefindex += 1
@@ -258,11 +260,8 @@ def append_size(self, position, size):
         elif position == "bottom":
             self._vertical.insert(0, size)
             self._yrefindex += 1
-        elif position == "top":
+        else:  # 'top'
             self._vertical.append(size)
-        else:
-            _api.check_in_list(["left", "right", "bottom", "top"],
-                               position=position)
 
     def add_auto_adjustable_area(self, use_axes, pad=0.1, adjust_dirs=None):
         """
@@ -512,6 +511,8 @@ def append_axes(self, position, size, pad=None, add_to_figure=True, *,
         **kwargs
             All extra keywords arguments are passed to the created axes.
         """
+        _api.check_in_list(["left", "right", "bottom", "top"],
+                           position=position)
         if position == "left":
             ax = self.new_horizontal(
                 size, pad, pack_start=True, axes_class=axes_class, **kwargs)
@@ -521,12 +522,9 @@ def append_axes(self, position, size, pad=None, add_to_figure=True, *,
         elif position == "bottom":
             ax = self.new_vertical(
                 size, pad, pack_start=True, axes_class=axes_class, **kwargs)
-        elif position == "top":
+        else:  # "top"
             ax = self.new_vertical(
                 size, pad, pack_start=False, axes_class=axes_class, **kwargs)
-        else:
-            _api.check_in_list(["left", "right", "bottom", "top"],
-                               position=position)
         if add_to_figure:
             self._fig.add_axes(ax)
         return ax
 
@@ -813,7 +813,7 @@ def set_proj_type(self, proj_type, focal_length=None):
                 raise ValueError(f"focal_length = {focal_length} must be "
                                  "greater than 0")
             self._focal_length = focal_length
-        elif proj_type == 'ortho':
+        else:  # 'ortho':
             if focal_length not in (None, np.inf):
                 raise ValueError(f"focal_length = {focal_length} must be "
                                  f"None for proj_type = {proj_type}")