Make werkzeug.wsgi middleware imports the fallback option

This change swaps the attempted import order around so that the
newer imports are tried first.

srht/debug.py

@@ -25,9 +25,9 @@ def configure_static_arguments(parser):
 def configure_static_serving(app, args):
     if args.static and app.static_folder:
         try:
-            from werkzeug.wsgi import SharedDataMiddleware
-        except ImportError:
             from werkzeug.middleware.shared_data import SharedDataMiddleware
+        except ImportError:
+            from werkzeug.wsgi import SharedDataMiddleware
 
         print("Serving static assets from: {}".format(app.static_folder))
         app.wsgi_app = SharedDataMiddleware(app.wsgi_app, {

srht/flask.py

@@ -18,9 +18,9 @@ from werkzeug.local import LocalProxy
 from werkzeug.routing import UnicodeConverter
 from werkzeug.urls import url_quote
 try:
-    from werkzeug.wsgi import DispatcherMiddleware
-except ImportError:
     from werkzeug.middleware.dispatcher import DispatcherMiddleware
+except ImportError:
+    from werkzeug.wsgi import DispatcherMiddleware
 import binascii
 import bleach
 import decimal