How about using the Walrus operator/assignment expression, since Python 3.8?
if this := [i for i in range(10) if i == 5]: print(this) Evaluate: [5] On Mon, 15 Jun 2020 at 16:03, M Bfmv <ik9...@live.nl> wrote: > Hey all. Ever had some list comprehension hell in your code? > Me neither *whistles 418 happly*... > > I was thinking about this idea and while `this` keyword is equalevant to > `self` i have to explain myself. > English is not my main language, sorry for that :' ) Here is my pseudo > code. > > ``` > if [i for i in range(10) if i == 11]: > print(this) > > Evaluate: [] > ``` > > Another one > ``` > if [i for i in range(10) if i == 5]: > print(this) > > Evaluate: [5] > ``` > As I try to show above. It would be neat to make a list comprhension if > statement and use those results in the if condition as the `this` parameter > Instead of declaring variables like > > ``` > a = [i for i in range(10) if i == 5] > if a: > print(a) > > Evaluate: [5] > ``` > > I hope I explained my idea well enough and hope to see something like this > in the future. > If anyone has questions on my interpretation please ask. > > > _______________________________________________ > 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/PB7AHBHELBLRFVKRRQL4M3SNWB4RXGNW/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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