matplotlib
diff --git a/‎lib/matplotlib/testing/decorators.py
Copy file name to clipboardExpand all lines: lib/matplotlib/testing/decorators.py
+1-1Lines changed: 1 addition & 1 deletion b/‎lib/matplotlib/testing/decorators.py
Copy file name to clipboardExpand all lines: lib/matplotlib/testing/decorators.py
+1-1Lines changed: 1 addition & 1 deletion
@@ -392,7 +392,7 @@ def find_dotted_module(module_name, path=None):
                         file.close()
                 except ImportError:
                     # assume namespace package
-                    path = sys.modules[sub_mod].__path__
+                    path = list(sys.modules[sub_mod].__path__)
                     res = None, path, None
             return res