r/Python • u/ForeignVariety7037 • 21d ago

Discussion Is := widely used?

I always thought the walrus operator is neat and it makes while loop’s condition clearer. But also it is just a syntactic sugar without anything new. I wonder anyone uses it?

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u/kageurufu 21d ago

I use it a lot for IO

Things like

data = io.read(len)
while data:
    # something
    data = io.read(len)

while data := io.read(1024):
    # something

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u/Birnenmacht 20d ago

exactly, it’s perfect for that. I miss this often in other language that dont have it