I tried erlang-ish [1|2] in python and something came out...

[process]

In erlang you can cons like this: [1|2]. i tried this in python and it
didnt raise an error but i dont know what the result do

>>> [1|2]
[3]
>>> [2|2]
[2]
>>> a = [2|2]
>>> a
[2]
>>> [2|3]
[3]
>>> [2|1]
[3]
>>>