Question about garbage collection

[dieter.maurer at online.de]

Frank Millman wrote at 2024-1-15 15:51 +0200:
>I have read that one should not have to worry about garbage collection 
>in modern versions of Python - it 'just works'.

There are still some isolated cases when not all objects
in an unreachable cycle are destroyed
(see e.g. step 2 of
"https://devguide.python.org/internals/garbage-collector/index.html#destroying-unreachable-objects").
But Python's own objects (e.g. traceback cycles)
or instances of classes implemented in Python
should no longer be affected.

Thus, unless you use extensions implemented in C (with "legacy finalizer"s),
garbage collection should not make problems.


On the other hand, your application, too, must avoid memory leaks.
Caches of various forms (with data for several sessions) might introduce them.