On 29 Jan 2009, at 21:54, Nick Coghlan wrote:
For the "reiterable" cases like dictionary views (where the object is not consumed), an appropriate __str__ or __repr__ should be written).
Indeed, instead of having a __pprint__ why not just allow a __repr__ to reformat its output? dict having: def __repr__(self, pretty=False): if pretty: return "{\n a: 1\n b: 2\n}" else: return "{a: 1, b: 2}" That way you can specify your own pretty format, intending it to still be a valid __repr__ and pprint can do: try: print(obj.__repr__(pretty=True)) except TypeError: print(prettify(repr(obj))) That way it's opt in, doesn't have a special method, and includes the mental prompt "this should eval() to obj" Matt