try/finally

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@45653 0039d316-1c4b-4281-b951-d872f2087c98

gclient_utils.py

@@ -385,15 +385,17 @@ class ThreadPool:
       """Executes jobs from the pool's queue."""
       while not self._done:
         f = self._pool._queue.get()
+        try:
           try:
             f(self)
           except Exception, e:
-          # Catch all exceptions, otherwise we can't join the thread. Print the
+            # Catch all exceptions, otherwise we can't join the thread. Print
-          # backtrace now, but keep the exception so that we can raise it on the
+            # the backtrace now, but keep the exception so that we can raise it
-          # main thread.
+            # on the main thread.
             type, value, tb = sys.exc_info()
             traceback.print_exception(type, value, tb)
             self.exceptions.append(e)
+        finally:
           self._pool._JobDone()
 
   def _AddJobToQueue(self, job):