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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"bundled six 1.9.0 causes ImportError: No module named 'winreg' in Pympler","articleBody":"To help us understand and resolve your issue please check that you have provided\nthe information below.\n- [x] Matplotlib version, Python version and Platform (Windows, OSX, Linux ...)\n\n\u003e 1.5.1, 2.7.11/3.5.1, Fedora rawhide\n- [x] How did you install Matplotlib and Python (pip, anaconda, from source ...)\n\n\u003e From Fedora package.\n- [ ] If possible please supply a [Short, Self Contained, Correct, Example](http://sscce.org/)\n    that demonstrates the issue i.e a small piece of code which reproduces the issue\n    and can be run with out any other (or as few as possible) external dependencies.\n\n\u003e Try building Pympler (http://pythonhosted.org/Pympler/) and running its tests (`python3 setup.py test`). On armv7hl, I get this exception:\n\u003e \n\u003e ```\n\u003e Traceback (most recent call last):\n\u003e   File \"/builddir/build/BUILD/Pympler-0.4.3/test/tracker/test_classtracker.py\", line 178, in test_snapshot_members\n\u003e     self.tracker.create_snapshot(compute_total=True)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/classtracker.py\", line 567, in create_snapshot\n\u003e     snapshot.asizeof_total = asizeof.asizeof(all=True, code=True)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 2191, in asizeof\n\u003e     s = _asizer.asizeof(*t)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 1783, in asizeof\n\u003e     s, _ = self._sizes(objs, None)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 1753, in _sizes\n\u003e     s[i] = self._sizer(o, 0, sized)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 1729, in _sizer\n\u003e     s += z(o, d, None)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 1729, in _sizer\n\u003e     s += z(o, d, None)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 1729, in _sizer\n\u003e     s += z(o, d, None)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 1729, in _sizer\n\u003e     s += z(o, d, None)\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 1728, in _sizer\n\u003e     for o in r(obj, False):\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 536, in _refs\n\u003e     for _, o in _dir2(obj, **kwds):\n\u003e   File \"/builddir/build/BUILDROOT/python-Pympler-0.4.3-1.fc25.noarch/usr/lib/python3.5/site-packages/pympler/asizeof.py\", line 347, in _dir2\n\u003e     if hasattr(obj, slots):\n\u003e   File \"/usr/lib/python3.5/site-packages/matplotlib/externals/six.py\", line 116, in __getattr__\n\u003e     _module = self._resolve()\n\u003e   File \"/usr/lib/python3.5/site-packages/matplotlib/externals/six.py\", line 113, in _resolve\n\u003e     return _import_module(self.mod)\n\u003e   File \"/usr/lib/python3.5/site-packages/matplotlib/externals/six.py\", line 80, in _import_module\n\u003e     __import__(name)\n\u003e ImportError: No module named 'winreg'\n\u003e ```\n\nThe bundled six.py has this:\n\n```\nclass _MovedItems(_LazyModule):\n    \"\"\"Lazy loading of moved objects\"\"\"\n    __path__ = []  # mark as package\n\n\n_moved_attributes = [\n...\n    MovedModule(\"winreg\", \"_winreg\"),\n]\n```\n\nwhile python-six-1.10.0 (latest version) has this:\n\n```\n# Add windows specific modules.\nif sys.platform == \"win32\":\n    _moved_attributes += [\n        MovedModule(\"winreg\", \"_winreg\"),\n    ]\n```\n\nI applied this patch:\n\n```\ndiff -up matplotlib-1.5.1/setupext.py.six matplotlib-1.5.1/setupext.py\n--- matplotlib-1.5.1/setupext.py.six    2016-01-10 23:20:20.000000000 +0100\n+++ matplotlib-1.5.1/setupext.py    2016-05-18 13:44:21.534494158 +0200\n@@ -1026,6 +1026,18 @@ class Qhull(SetupPackage):\n             ext.sources.extend(glob.glob('extern/qhull/*.c'))\n\n\n+class Six(SetupPackage):\n+    name = \"six\"\n+\n+    def check(self):\n+        try:\n+            import six\n+        except ImportError:\n+            return 'not found. pip may install it below.'\n+\n+        return 'version %s' % six.__version__\n+\n+\n class TTConv(SetupPackage):\n     name = \"ttconv\"\n\ndiff -up matplotlib-1.5.1/setup.py.six matplotlib-1.5.1/setup.py\n--- matplotlib-1.5.1/setup.py.six   2016-01-10 23:20:20.000000000 +0100\n+++ matplotlib-1.5.1/setup.py   2016-05-18 13:44:21.528494040 +0200\n@@ -84,7 +84,7 @@ mpl_packages = [\n     setupext.Delaunay(),\n     setupext.QhullWrap(),\n     setupext.Tri(),\n-    setupext.Externals(),\n+    setupext.Six(),\n     'Optional subpackages',\n     setupext.SampleData(),\n     setupext.Toolkits(),\n```\n\nand replaced all imports from bundled **six** to system-wide **six** without any adverse effects. Please consider unbundling **six** and using system-wide version.\n","author":{"url":"https://github.com/rathann","@type":"Person","name":"rathann"},"datePublished":"2016-06-05T21:59:52.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":12},"url":"https://github.com/6537/matplotlib/issues/6537"}