Merge pull request matplotlib#2368 from mdboom/test/set-locale

Set locale for tests

Author: mdboom

lib/matplotlib/tests/__init__.py

@@ -8,6 +8,11 @@
 
 
 def setup():
+    # The baseline images are created in this locale, so we should use
+    # it during all of the tests.
+    import locale
+    locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')
+
     use('Agg', warn=False) # use Agg backend for these tests
 
     # These settings *must* be hardcoded for running the comparison