Exception on unsaved views

[bizoo]

This exception probably happen because of new unsaved view, which view.file_name() return None:

Traceback (most recent call last):
  File ".\sublime_plugin.py", line 175, in on_load
  File ".\sublime_plugin.py", line 154, in run_timed_function
  File ".\sublime_plugin.py", line 174, in <lambda>
  File ".\sublime_rope.py", line 436, in on_load
    self._check(view)
  File ".\sublime_rope.py", line 478, in _check
    view.file_name().encode('utf-8')
AttributeError: 'NoneType' object has no attribute 'encode'