Hello, I find it very useful if I am allowed to define new local variables in a list comprehension. For example, I wish to have something like [(x, y) for x in range(10) for y := x ** 2 if x + y < 80], or [(x, y) for x in range(10) with y := x ** 2 if x + y < 80].
For now this functionality can be achieved by writing [(x, y) for x in range(10) for y in [x ** 2] if x + y < 80]. Is it worthwhile to add a new feature like this in Python? If so, how can I propose this to PEP? -- https://mail.python.org/mailman/listinfo/python-list
