Códigos Fuente de Python

list_flat([1, 2, 3]) # [1, 2, 3]

list_flat([[1], [], 2, [3,[4, 5, 6]], 7]) # [1, 2, 3, 4, 5, 6, 7]

list_flat([[[], []], []]) # []

list_flat([1, [[], []], []]) # [1]

list_flat([1, [["a"], [[[[["e"]]]]]], [["i"]]]) # [1, 'a', 'e', 'i']

list_flat([]) # []

list_flat([[1, 2, 3], [4, 5]]) # [1, 2, 3, 4 ,5]

list_flat([[1, 2, 3], []]) # [1, 2, 3]

list_flat([[1, [2], 3], [4, 5]]) # [1, [2], 3, 4, 5]

list_flat([1, 2]) # Error

GetNumbers("10") # 10

GetNumbers("10a1") # 101

GetNumbers("house 125") # 125

GetNumbers([]) # None

GetNumbers([1, 2, 3]) # 123

GetNumbers([1, 2, 3, "a", 4]) # 1234

GetNumbers(["h", "o", "u", "s", "e"]) # None

joinLetters("") # []

joinLetters(".") # []

joinLetters("acdcaa") # ["aaa", "cc", "d"]

joinLetters("blue house!!") # ["b", "ee", "h", "l", "o", "s", "uu"]

ages = {

     "Juan": 20,

     "Esther": 31,

     "Anna": 25,

}

values_only(ages) # [20, 31, 25]