Fix failure

Author: h-vetinari

pandas/tests/plotting/test_series.py

@@ -767,7 +767,8 @@ def test_errorbar_plot(self):
             s.plot(yerr=np.arange(11))
 
         s_err = ['zzz'] * 10
-        with pytest.raises(TypeError):
+        exc = TypeError if self.mpl_ge_2_1_0 else ValueError
+        with pytest.raises(exc):
             s.plot(yerr=s_err)
 
     # This XPASSES when tested with mpl == 3.0.1