== is

# 判断两个数据 值和内存地址是否相等
符号: ==(只判断值) is(判断内存地址)

s1 = ['jason', 'kevin', 'tony', 'jackson']
s2 = ['jason', 'kevin', 'tony', 'jackson']
print(s1 == s2) # True
# print(id(s1),id(s2))
print(s1 is s2) # False