Visual Studio Code - PEP8 Lambda Issue

[Qui_Ten]

PEP8 is automatically formatting a part of my code, I was just learning about lambdas and I had a 2 line code like this:

My simple code: (2 lines)

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divide = lambda x, y: x/y
print(divide(10, 2))

What PEP 8 does: (4 lines)

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def divide(x, y): return x/y


print(divide(10, 2))

it may not seem like a lot, but it went from 2 lines to 4 lines, with the huge possibility of it being a 6 line code (if I had anything above the def function, it would add another 2 lines between them.)

If the def had anything above: (6 lines)

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# don't count this line.


def divide(x, y): return x/y


print(divide(10, 2))

So it can easily go from 2 lines to 6 lines!

How do I disable this function specifically for lambdas?

[buran]

It's not PEP8 that format your code, but the linter extension you have installed (there are several, so it's not clear which one you use - probably the one with same name?). The purpose of linter is to make your code conform with PEP8 recommendations. How strict it will be depends on your particular settings - this is to answer the question how you can disable.
Now, in this particular case PEP8 has clear recommendation:

Always use a def statement instead of an assignment statement that binds a lambda expression directly to an identifier.

Yes:

def f(x): return 2*x

No:

f = lambda x: 2*x

The first form means that the name of the resulting function object is specifically 'f' instead of the generic '<lambda>'. This is more useful for tracebacks and string representations in general. The use of the assignment statement eliminates the sole benefit a lambda expression can offer over an explicit def statement (i.e. that it can be embedded inside a larger expression)