This is more of a syntactic sugar than an actual new feature, but... Exactly, 'but' is the idea: a special keyword to be used in for statements to exclude values from the iterable.
E.g., when iterating over a generator: >>> for i in range(0, 10) but (2, 8): would implicitly create a new generator comprehensively, as in: >>> for i in (j for j in range(0, 10) if j not in [2, 8]): It might not add such a feature to justify the definition of a but_stmt in python.gram, but it's fully compliant with Python's philosophy of concise, clear and elegant code. #road to a programming natural language (jk) _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/YI2ILMNQDFKLDLJN4SLRNWEQA3CPGX5U/ Code of Conduct: http://python.org/psf/codeofconduct/
