Support onle positional arguments

chahak13 · chahak13 · commit d8e791da2c96 · 2022-12-19T14:57:47.000+05:30
diff --git a/lib/matplotlib/contour.py b/lib/matplotlib/contour.py
@@ -1446,24 +1446,7 @@ def _contour_args(self, args, kwargs):
         else:
             fn = 'contour'
         nargs = len(args)
-        if "X" in kwargs and "Y" in kwargs and "Z" in kwargs:
-            x, y, z = self._check_xyz(
-                [
-                    kwargs.pop("X"),
-                    kwargs.pop("Y"),
-                    kwargs.pop("Z")
-                ],
-                kwargs
-            )
-        elif (("X" in kwargs) ^ ("Y" in kwargs)) and "Z" in kwargs:
-            raise TypeError(
-                "Both or neither 'X' and 'Y' may be passed as kwargs. "
-                "Passing only one of 'X' or 'Y' is not allowed."
-            )
-        elif "Z" in kwargs:
-            z = ma.asarray(kwargs.pop("Z"), dtype=np.float64)
-            x, y = self._initialize_x_y(z)
-        elif 0 < nargs <= 2:
+        if 0 < nargs <= 2:
             z = ma.asarray(args[0], dtype=np.float64)
             x, y = self._initialize_x_y(z)
             args = args[1:]
diff --git a/lib/matplotlib/tests/test_contour.py b/lib/matplotlib/tests/test_contour.py
@@ -695,18 +695,8 @@ def test_contour_remove():
     assert ax.get_children() == orig_children
 
 
-def test_contour_kwargsonly():
-    # Smoke test for GH#24743
-    # Passing only kwargs
+def test_contour_no_args():
+    fig, ax = plt.subplots()
     data = [[0, 1], [1, 0]]
-    plt.contour(Z=data)
-    plt.contour(X=data, Y=data, Z=data)
-
-
-def test_contour_either_xy():
-    with pytest.raises(TypeError,
-                       match="Both or neither 'X' and 'Y' may be passed"):
-        plt.contour(
-            X=np.random.rand(30, 30),
-            Z=np.random.rand(30, 30)
-        )
+    with pytest.raises(TypeError):
+        ax.contour(Z=data)
