matplotlib
diff --git a/‎lib/matplotlib/axes.py
Copy file name to clipboardExpand all lines: lib/matplotlib/axes.py
+4Lines changed: 4 additions & 0 deletions b/‎lib/matplotlib/axes.py
Copy file name to clipboardExpand all lines: lib/matplotlib/axes.py
+4Lines changed: 4 additions & 0 deletions
@@ -5441,6 +5441,8 @@ def errorbar(self, x, y, yerr=None, xerr=None,
                 lines_kw['lw']=kwargs['lw']
         if 'transform' in kwargs:
             lines_kw['transform'] = kwargs['transform']
+        if 'alpha' in kwargs:
+            lines_kw['alpha'] = kwargs['alpha']
         if 'zorder' in kwargs:
             lines_kw['zorder'] = kwargs['zorder']
 
@@ -5491,6 +5493,8 @@ def xywhere(xs, ys, mask):
                 plot_kw['mew']=kwargs['mew']
             if 'transform' in kwargs:
                 plot_kw['transform'] = kwargs['transform']
+            if 'alpha' in kwargs:
+                plot_kw['alpha'] = kwargs['alpha']
             if 'zorder' in kwargs:
                 plot_kw['zorder'] = kwargs['zorder']