matplotlib
diff --git a/‎lib/matplotlib/collections.py
Copy file name to clipboardExpand all lines: lib/matplotlib/collections.py
+2-2Lines changed: 2 additions & 2 deletions b/‎lib/matplotlib/collections.py
Copy file name to clipboardExpand all lines: lib/matplotlib/collections.py
+2-2Lines changed: 2 additions & 2 deletions
diff --git a/‎lib/matplotlib/lines.py
Copy file name to clipboardExpand all lines: lib/matplotlib/lines.py
+4-8Lines changed: 4 additions & 8 deletions b/‎lib/matplotlib/lines.py
Copy file name to clipboardExpand all lines: lib/matplotlib/lines.py
+4-8Lines changed: 4 additions & 8 deletions
diff --git a/‎lib/matplotlib/patches.py
Copy file name to clipboardExpand all lines: lib/matplotlib/patches.py
+2-4Lines changed: 2 additions & 4 deletions b/‎lib/matplotlib/patches.py
Copy file name to clipboardExpand all lines: lib/matplotlib/patches.py
+2-4Lines changed: 2 additions & 4 deletions
@@ -599,7 +599,7 @@ def set_capstyle(self, cs):
         cs : {'butt', 'round', 'projecting'}
             The capstyle
         """
-        cbook._check_in_list(('butt', 'round', 'projecting'), capstyle=cs)
+        mpl.rcsetup.validate_capstyle(cs)
         self._capstyle = cs
 
     def get_capstyle(self):
@@ -614,7 +614,7 @@ def set_joinstyle(self, js):
         js : {'miter', 'round', 'bevel'}
             The joinstyle
         """
-        cbook._check_in_list(('miter', 'round', 'bevel'), joinstyle=js)
+        mpl.rcsetup.validate_joinstyle(js)
         self._joinstyle = js
 
     def get_joinstyle(self):
 
@@ -1352,8 +1352,7 @@ def set_dash_joinstyle(self, s):
         s : {'miter', 'round', 'bevel'}
             For examples see :doc:`/gallery/lines_bars_and_markers/joinstyle`.
         """
-        s = mpl.rcsetup._deprecate_case_insensitive_join_cap(s)
-        cbook._check_in_list(self.validJoin, s=s)
+        mpl.rcsetup.validate_joinstyle(s)
         if self._dashjoinstyle != s:
             self.stale = True
         self._dashjoinstyle = s
@@ -1367,8 +1366,7 @@ def set_solid_joinstyle(self, s):
         s : {'miter', 'round', 'bevel'}
             For examples see :doc:`/gallery/lines_bars_and_markers/joinstyle`.
         """
-        s = mpl.rcsetup._deprecate_case_insensitive_join_cap(s)
-        cbook._check_in_list(self.validJoin, s=s)
+        mpl.rcsetup.validate_joinstyle(s)
         if self._solidjoinstyle != s:
             self.stale = True
         self._solidjoinstyle = s
@@ -1398,8 +1396,7 @@ def set_dash_capstyle(self, s):
         s : {'butt', 'round', 'projecting'}
             For examples see :doc:`/gallery/lines_bars_and_markers/joinstyle`.
         """
-        s = mpl.rcsetup._deprecate_case_insensitive_join_cap(s)
-        cbook._check_in_list(self.validCap, s=s)
+        mpl.rcsetup.validate_capstyle(s)
         if self._dashcapstyle != s:
             self.stale = True
         self._dashcapstyle = s
@@ -1413,8 +1410,7 @@ def set_solid_capstyle(self, s):
         s : {'butt', 'round', 'projecting'}
             For examples see :doc:`/gallery/lines_bars_and_markers/joinstyle`.
         """
-        s = mpl.rcsetup._deprecate_case_insensitive_join_cap(s)
-        cbook._check_in_list(self.validCap, s=s)
+        mpl.rcsetup.validate_capstyle(s)
         if self._solidcapstyle != s:
             self.stale = True
         self._solidcapstyle = s
 
@@ -461,8 +461,7 @@ def set_capstyle(self, s):
         ----------
         s : {'butt', 'round', 'projecting'}
         """
-        s = mpl.rcsetup._deprecate_case_insensitive_join_cap(s)
-        cbook._check_in_list(self.validCap, capstyle=s)
+        mpl.rcsetup.validate_capstyle(s)
         self._capstyle = s
         self.stale = True
 
@@ -477,8 +476,7 @@ def set_joinstyle(self, s):
         ----------
         s : {'miter', 'round', 'bevel'}
         """
-        s = mpl.rcsetup._deprecate_case_insensitive_join_cap(s)
-        cbook._check_in_list(self.validJoin, joinstyle=s)
+        mpl.rcsetup.validate_joinstyle(s)
         self._joinstyle = s
         self.stale = True