I mean, I've seen bugs around that in code I've worked on and I've created bugs where it's a factor. Weakrefs are also a core part of the language: https://doc

I mean, I've seen bugs around that in code I've worked on and I've created bugs where it's a factor. Weakrefs are also a core part of the language: https://docs.python.org/3/library/weakref.html https://docs.python.org/3/library/weakref.html . You can't use python without using them.