[python] sort, sorted, id, copy

In [34]: x = [5, 7, 3, 38, 7]
    ...: y = sorted(x)

In [35]: x
Out[35]: [5, 7, 3, 38, 7]

In [36]: y
Out[36]: [3, 5, 7, 7, 38]

In [37]: xx = x

In [38]: xx
Out[38]: [5, 7, 3, 38, 7]

In [39]: id(xx)
Out[39]: 1635703548744

In [40]: id(x)
Out[40]: 1635703548744

In [41]: xx = x.copy()

In [42]: xx
Out[42]: [5, 7, 3, 38, 7]

In [43]: id(xx)
Out[43]: 1635703377480

In [44]: x.sort()

In [45]: x
Out[45]: [3, 5, 7, 7, 38]