Why does initializing a variable via a python default variable keep state across object instantiation?

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Chapters
00:00 Question
01:09 Accepted answer (Score 15)
01:58 Answer 2 (Score 5)
02:29 Answer 3 (Score 3)
03:08 Thank you

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Full question
https://stackoverflow.com/questions/3887...

Answer 1 links:
["Least Astonishment" and the Mutable Default Argument]: https://stackoverflow.com/questions/1132...
http://effbot.org/zone/default-values.ht...

Answer 2 links:
[This blog post]: http://www.deadlybloodyserious.com/2008/.../

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Tags
#python #arguments

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