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June 2022

54 participants
27 discussions

Opt-in “iter def” and/or “gen def” syntax for generator functions
by armload_lakes0c＠icloud.com June 1, 2022

June 1, 2022

After getting used to writing async functions, I’ve been wanting use a similar syntax to declare generator functions. Something along the lines of `iter def my_iterator() -> T` and/or `gen def my_generator() -> (T, U, V)` Obviously, for backwards compatibility, this would need to be optional or have an opt-in mechanism. Would a feature like this be at all within the realm of possibility? I’d be happy to write up a much longer discussion if so. (I found a short discussion of such a … [View More]

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Python array multiplication for negative values should throw an error
by fjwillemsen＠icloud.com June 1, 2022

June 1, 2022

Hopefully this is not a duplicate of an existing thread or in the wrong section, first time posting here. In Python, array multiplication is quite useful to repeat an existing array, e.g. [1,2,3] * 2 becomes [1,2,3,4,5,6]. Multiplication by 0 yields an empty array: [1,2,3] * 0 becomes []. However, operations such as [numpy array] * -1 are very common to get the inverse of an array of numbers. The confusion here stems from the lack of type checking: while the programmer should check whether … [View More]

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