Python 混淆知识点集合

1，字符串和列表的更新异同：

  （1）均可更新

  （2）It's important to remember that lists are mutable (changeable) in Python,
but strings aren't; when you slice a string, you get back a new string. The original string is unchanged
unless you purposely "save over" it, like this:

my_string = "Monty Python"
# => Monty Python
my_string = my_string[:-7]
# => Monty