From 10d94aebab631235cc939eedf39b7ceb382b5ab0 Mon Sep 17 00:00:00 2001
From: Matthew Brett <matthew.brett@gmail.com>
Date: Thu, 29 Dec 2016 18:01:13 +0000
Subject: [PATCH] BF: Convert namespace path to list

For some reason, on some systems, the ``__path__`` attribute of a module
is a _NamespacePath, not a list, as we expected - see:
https://github.com/MacPython/matplotlib-wheels/issues/2
---
 lib/matplotlib/testing/decorators.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/matplotlib/testing/decorators.py b/lib/matplotlib/testing/decorators.py
index 7930e0b47935..6af18dd59609 100644
--- a/lib/matplotlib/testing/decorators.py
+++ b/lib/matplotlib/testing/decorators.py
@@ -461,7 +461,7 @@ 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