https://www.w3schools.com/python/python_lambda.asp
'append', 'clear', 'copy', 'count', 'extend', 'index', 'insert', 'pop', 'remove', 'reverse', 'sort'
slice(start, end, step)
start Optional. An integer number specifying at which position to start the slicing. Default is 0 end An integer number specifying at which position to end the slicing step Optional. An integer number specifying the step of the slicing. Default is 1
a = ("a", "b", "c", "d", "e", "f", "g", "h") x = slice(0, 8, 3) print(a[x])
ex x=10
def lw(): x=9 print(x)