Wow. That was a great explanation indeed. Thanks a lot. After reading
this, I discovered something like this, and found it pretty insteresting
indeed:
>>> a=["a"]
>>> b=[a]
>>> a.append("c")
>>> b
[['a', 'c']]
>>> a.append("d")
>>> b
[['a', 'c', 'd']]
Apperantly, I can change something (which is mutable) inside a list
without even touching the list itself :)
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