matplotlib
diff --git a/‎lib/matplotlib/_api/__init__.py
Copy file name to clipboardExpand all lines: lib/matplotlib/_api/__init__.py
+23-13Lines changed: 23 additions & 13 deletions b/‎lib/matplotlib/_api/__init__.py
Copy file name to clipboardExpand all lines: lib/matplotlib/_api/__init__.py
+23-13Lines changed: 23 additions & 13 deletions
@@ -12,6 +12,7 @@
 
 import functools
 import itertools
+import pathlib
 import re
 import sys
 import warnings
@@ -366,16 +367,25 @@ def warn_external(message, category=None):
     warnings.warn`` (or ``functools.partial(warnings.warn, stacklevel=2)``,
     etc.).
     """
-    frame = sys._getframe()
-    for stacklevel in itertools.count(1):
-        if frame is None:
-            # when called in embedded context may hit frame is None
-            break
-        if not re.match(r"\A(matplotlib|mpl_toolkits)(\Z|\.(?!tests\.))",
-                        # Work around sphinx-gallery not setting __name__.
-                        frame.f_globals.get("__name__", "")):
-            break
-        frame = frame.f_back
-    # preemptively break reference cycle between locals and the frame
-    del frame
-    warnings.warn(message, category, stacklevel)
+    kwargs = {}
+    if sys.version_info[:2] >= (3, 12):
+        # Go to Python's `site-packages` or `lib` from an editable install.
+        basedir = pathlib.Path(__file__).parents[2]
+        kwargs['skip_file_prefixes'] = (str(basedir / 'matplotlib'),
+                                        str(basedir / 'mpl_toolkits'))
+    else:
+        frame = sys._getframe()
+        for stacklevel in itertools.count(1):
+            if frame is None:
+                # when called in embedded context may hit frame is None
+                kwargs['stacklevel'] = stacklevel
+                break
+            if not re.match(r"\A(matplotlib|mpl_toolkits)(\Z|\.(?!tests\.))",
+                            # Work around sphinx-gallery not setting __name__.
+                            frame.f_globals.get("__name__", "")):
+                kwargs['stacklevel'] = stacklevel
+                break
+            frame = frame.f_back
+        # preemptively break reference cycle between locals and the frame
+        del frame
+    warnings.warn(message, category, **kwargs)