homepage

Currently, I'm monkey patching _safe_key (adding a try/except) as follows:
>>> import pprint
>>>
>>> class _safe_key(pprint._safe_key):
>>> def __lt__(self, other):
>>> try:
>>> rv = self.obj.__lt__(other.obj)
>>> except TypeError: # Exception instead of TypeError?
>>> rv = NotImplemented
>>> 
>>> if rv is NotImplemented:
>>> rv = (str(type(self.obj)), id(self.obj)) < \
>>> (str(type(other.obj)), id(other.obj))
>>> return rv
>>> 
>>> pprint._safe_key = _safe_key
>>> 
>>> pprint.pprint({(0,): 1, (None,): 2})
{(None,): 2, (0,): 1}