Issue1149372

When defining a class that overloads the __str__ 
method and raises an exception in the overloaded 
method, for example

class C:
  def __str__(self):
    raise Exception("i am an exception")

If we call str on an object of this class the exception will 
not be raised

x=C()
str(x)

(no exception will be reported by jython)

P.S.
when using x.__str__() the exception will be raised and 
jython will display it

Logged In: YES 
user_id=37674

The behaviour of raising an exception is consistent with CPython.  The 
bug is in PyInstance which catches the thrown exception and then calls 
__repr__.