Merge pull request matplotlib#23246 from oscargus/imageinterpolationfix

anntzer · web-flow · commit 9e0747beaf7b · 2022-06-12T11:48:26.000+02:00
diff --git a/lib/matplotlib/_api/__init__.py b/lib/matplotlib/_api/__init__.py
@@ -120,6 +120,8 @@ def check_in_list(_values, *, _print_supported_values=True, **kwargs):
     --------
     >>> _api.check_in_list(["foo", "bar"], arg=arg, other_arg=other_arg)
     """
+    if not kwargs:
+        raise TypeError("No argument to check!")
     values = _values
     for key, val in kwargs.items():
         if val not in values:
diff --git a/lib/matplotlib/image.py b/lib/matplotlib/image.py
@@ -787,7 +787,7 @@ def set_interpolation_stage(self, s):
         """
         if s is None:
             s = "data"  # placeholder for maybe having rcParam
-        _api.check_in_list(['data', 'rgba'])
+        _api.check_in_list(['data', 'rgba'], s=s)
         self._interpolation_stage = s
         self.stale = True
 
diff --git a/lib/matplotlib/tests/test_api.py b/lib/matplotlib/tests/test_api.py
@@ -93,3 +93,8 @@ def test_deprecation_alternative():
     def f():
         pass
     assert alternative in f.__doc__
+
+
+def test_empty_check_in_list():
+    with pytest.raises(TypeError, match="No argument to check!"):
+        _api.check_in_list(["a"])
