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Python has a trick allowing mutable concat when reference count is 1 https://github.com/python/cpython/blob/08d09cf5ba041c9c5c3860200b56bab66fd44a23/Objects/un
by __s 2y ago
Python has a trick allowing mutable concat when reference count is 1
https://github.com/python/cpython/blob/08d09cf5ba041c9c5c3860200b56bab66fd44a23/Objects/unicodeobject.c#L11104 https://github.com/python/cpython/blob/08d09cf5ba041c9c5c386...