On Feb 6, 11:47 am, "Johny" <[EMAIL PROTECTED]> wrote: > Where and when is good/nescessary to use `repr` instead of `str` ? > Can you please explain the differences > Thanks
RTFM. http://docs.python.org/ref/customization.html __repr__( self) Called by the repr() built-in function and by string conversions (reverse quotes) to compute the ``official'' string representation of an object. If at all possible, this should look like a valid Python expression that could be used to recreate an object with the same value (given an appropriate environment). If this is not possible, a string of the form "<...some useful description...>" should be returned. The return value must be a string object. If a class defines __repr__() but not __str__(), then __repr__() is also used when an ``informal'' string representation of instances of that class is required. This is typically used for debugging, so it is important that the representation is information-rich and unambiguous. __str__( self) Called by the str() built-in function and by the print statement to compute the ``informal'' string representation of an object. This differs from __repr__() in that it does not have to be a valid Python expression: a more convenient or concise representation may be used instead. The return value must be a string object. -- http://mail.python.org/mailman/listinfo/python-list
