gc

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CPython: reference counting and the cyclic GC

How CPython reclaims memory: immediate reference counting for the common case, plus a generational cyclic garbage collector that catches the reference cycles counting cannot. Covers what changes a refcount, generations and thresholds, the gc module, __del__ and weakref, and why a process's memory does not always shrink.

9 steps·~14 min

CPython: reference counting and the cyclic GC

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