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Remove types.py from the list.  As distributed with 2.2.1, it 
has 5 'except xxxError:' statements but no offending bare 
except:'s.

Skip (or anyone else): if/when you pursue this, I volunteer 
to do occasional sleuthing and send reports with 
suggestions and/or questions.  Example: getpass.py has 
one 'offense':
   try:
        fd = sys.stdin.fileno()
    except:
        return default_getpass(prompt)
According to lib doc 2.2.8 File Objects (as I interpret) fileno
() should either work without exception or *not* be 
implemented. Suggestion: insert AttributeError .  Question: 
do we protect against pseudofile objects that ignore doc 
and have fake .fileno() that raises NotImplementedError or 
whatever?