no-redundant-lambda

Collection: fixit-extra Autofix: Yes Python: Any

A lambda function which has a single objective of passing all it is arguments to another callable can be safely replaced by that callable.

Message

The lambda that is wrapping {function} is redundant. It can unwrapped safely and used purely.

Valid examples

lambda x: foo(y)

lambda x: foo(x, y)

lambda x, y: foo(x)

lambda *, x: foo(x)

lambda x = y: foo(x)

lambda x, y: foo(y, x)

Show more

lambda self: self.func()

lambda x, y: foo(y=x, x=y)

lambda x, y, *z: foo(x, y, z)

lambda x, y, **z: foo(x, y, z)

lambda: self.func()

lambda x, y, z: (t + u).math_call(x, y, z)

lambda x: obj.method(x)

class C:
    callback = lambda x: foo(x)

Invalid examples

lambda x: foo(x)

Suggested fix

foo