python-modernize automated changes: misc. minor stuff

flask/testsuite/__init__.py

@@ -10,6 +10,7 @@
     :license: BSD, see LICENSE for more details.
 """
 
+from __future__ import print_function
 from __future__ import with_statement
 
 import os
@@ -221,4 +222,4 @@ def main():
     try:
         unittest.main(testLoader=BetterLoader(), defaultTest='suite')
     except Exception, e:
-        print 'Error: %s' % e
+        print('Error: %s' % e)

flask/testsuite/config.py

@@ -113,7 +113,7 @@ class LimitedLoaderMockWrapper(object):
     def __getattr__(self, name):
         if name in ('archive', 'get_filename'):
             msg = 'Mocking a loader which does not have `%s.`' % name
-            raise AttributeError, msg
+            raise AttributeError(msg)
         return getattr(self.loader, name)