use-literal

Collection: fixit-extra Autofix: Yes Python: Any

A derivative of flake8-comprehensions’ C405-C406 and C409-C410. It’s unnecessary to use a list or tuple literal within a call to tuple, list, set, or dict since there is literal syntax for these types.

Valid examples

(1, 2)

()

[1, 2]

[]

{1, 2}

set()

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{1: 2, 3: 4}

{}

Invalid examples

tuple([1, 2])

Suggested fix

(1, 2)

tuple((1, 2))

Suggested fix

(1, 2)

tuple([])

Suggested fix

()

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list([1, 2, 3])

Suggested fix

[1, 2, 3]

list((1, 2, 3))

Suggested fix

[1, 2, 3]

list([])

Suggested fix

[]

set([1, 2, 3])

Suggested fix

{1, 2, 3}

set((1, 2, 3))

Suggested fix

{1, 2, 3}

set([])

Suggested fix

set()

dict([(1, 2), (3, 4)])

Suggested fix

{1: 2, 3: 4}

dict(((1, 2), (3, 4)))

Suggested fix

{1: 2, 3: 4}

dict([[1, 2], [3, 4], [5, 6]])

Suggested fix

{1: 2, 3: 4, 5: 6}

dict([])

Suggested fix

{}

tuple()

Suggested fix

()

list()

Suggested fix

[]

dict()

Suggested fix

{}