hooks: use try/except/finally

mercurial/hook.py

@@ -39,7 +39,6 def _pythonhook(ui, repo, name, hname, f
         if demandimportenabled:
             demandimport.disable()
         try:
-            try:
                 obj = __import__(modname)
             except ImportError:
                 e1 = sys.exc_type, sys.exc_value, sys.exc_traceback
@@ -79,7 +78,6 def _pythonhook(ui, repo, name, hname, f
     starttime = time.time()
 
     try:
-        try:
             # redirect IO descriptors to the ui descriptors so hooks
             # that write directly to these don't mess up the command
             # protocol when running through the command server