Le 28/02/2017 à 13:27, Markus Meskanen a écrit : > Well you could just use a dict subclass here with get() that takes > callable... >
As I said to Angelico: Yes but this assumes: - I have access to the code instantiating conf; - all code using conf are using load_from_db as a default value; - load_from_db exists for all code using the conf object There is always a solution to all problems, as Python is turing complete. You don't need list comprehension, you can use a for loop. You don't need upacking you can use indexing. And you don't need lazy, it's just convenient. _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/