Add unregister_scale() function to matplotlib.scale

dikshajangra12918-oss · web-flow · commit 12c9d664d286 · 2026-04-21T15:25:40.000+05:30
Added unregister_scale(name) function that allows users 
to remove previously registered custom scales from the 
registry.

Raises ValueError if the scale name is not found.
diff --git a/lib/matplotlib/scale.py b/lib/matplotlib/scale.py
@@ -955,6 +955,19 @@ def register_scale(scale_class):
             pending=True,
         )
 
+def unregister_scale(name):
+    """
+    Remove a custom scale from the registry.
+
+    Parameters
+    ----------
+    name : str
+        The name of the scale to remove.
+    """
+    if name not in _scale_mapping:
+        raise ValueError(f"Scale '{name}' is not registered.")
+    del _scale_mapping[name]
+
 
 def _get_scale_docs():
     """
