Python 3.12 - full course - id

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Python 3.12 complete course - id - copy vs. reference (shallow copy)
In [38]: # id - copy vs reference

In [39]: a = 5

In [40]: id(a)
Out[40]: 10815336

In [41]: id?
Signature: id(obj, /)
Docstring:
Return the identity of an object.

This is guaranteed to be unique among simultaneously existing objects.
(CPython uses the object's memory address.)
Type: builtin_function_or_method

In [42]: b = 3

In [43]: id(a)
Out[43]: 10815336

In [44]: id(b)
Out[44]: 10815272

In [45]: id(a) == id(b) # == question not assignment (= vs ==)
Out[45]: False

In [46]: x = ["a", "p", "p", "l", "e"]

In [47]: y = x

In [48]: id(x)
Out[48]: 139741025467776

In [49]: id(y)
Out[49]: 139741025467776

In [50]: id(x) == id(y)
Out[50]: True

In [52]: id(x)
Out[52]: 139741025467776

In [53]: id(y)
Out[53]: 139741015335488

In [54]: id(x) == id(y)
Out[54]: False