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Python

Consider the following code:

funs = [lambda: i for i in range(3)]
print([f() for f in funs])

The result it [2,2,2].

funs = [lambda i=i:i for i in range(3)]
print([f() for f in funs])

or

funs = (lambda: i for i in range(3))
print([f() for f in funs])

The result is [0,1,2].

def f(n, lst=[]):
    lst.append(n)
    return lst
print(f(1), f(2))

The result is [1,2], [1,2].

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