mylist = [3,4,5,6]

mylist = [1,2] + mylist + [7,8,9]

mylist

[1, 2, 3, 4, 5, 6, 7, 8, 9]

mylist = [3,4,5,6]

mylist.extend([7,8,9])

mylist

[3, 4, 5, 6, 7, 8, 9]

help(mylist.extend)

Help on built-in function extend:

extend(...) method of builtins.list instance
    L.extend(iterable) -> None -- extend list by appending elements from the iterable

mylist.insert(0, 2)
mylist.insert(0, 1)

mylist

[1, 2, 3, 4, 5, 6, 7, 8, 9]

mylist = [3,4,5,6]

mylist.insert(0, 1)

mylist

[1, 3, 4, 5, 6]

mylist.insert(1, 2)

mylist

[1, 2, 3, 4, 5, 6]

r = list(reversed([1, 2, 3, 4, 5, 6, 7, 8, 9]))

[9, 8, 7, 6, 5, 4, 3, 2, 1]

r.pop(0)

[8, 7, 6, 5, 4, 3, 2, 1]

r.remove(2)

[8, 7, 6, 5, 4, 3, 1]

fruits = ["Apple", "Bannah", "Melon"]

fruits.remove("Bannah")

fruits

['Apple', 'Melon']

fruits.remove(2)

    ---------------------------------------------------------------------------

    ValueError                                Traceback (most recent call last)

    <ipython-input-53-51c01885b0fd> in <module>
    ----> 1 fruits.remove(2)
    
    ValueError: list.remove(x): x not in list

list(reversed([1,2,3]))

[3, 2, 1]