Jan Kaliszewski <z...@chopin.edu.pl> added the comment:
On python-ideas I have proposed an ABC being also a kind of a mix-in,
potentially making namedtuple subclassing (with custom methods etc.) more
convenient, e.g.:
class MyRecord(namedtuple.abc):
_fields = 'x y z'
def _my_custom_method(self):
return list(self._asdict().items())
or
class MyAbstractRecord(namedtuple.abc):
def _my_custom_method(self):
return list(self._asdict().items())
class AnotherAbstractRecord(MyAbstractRecord):
def __str__(self):
return '<<<{}>>>'.format(super().__str__())
class MyRecord2(MyAbstractRecord):
_fields = 'a, b'
class MyRecord3(AnotherAbstractRecord):
_fields = 'p', 'q', 'r'
Here is an experimental monkey-patcher adding the 'abc' attribute to namedtuple:
http://dpaste.org/T9w6/
I am not sure if it is worth preparing an actual patch based on it. If you
think it is I could prepare one.
----------
nosy: +zuo
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<http://bugs.python.org/issue7796>
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