Python3 - How do I import a class from another file
On Tue, 10 Dec 2019 14:56:10 -0500
Dennis Lee Bieber <wlfraed at ix.netcom.com> wrote:
> It is called when the language IMPLEMENTATION decides to call
> it. That time is not specified in the language description/reference
Yes it is:
"Note: del x doesn?t directly call x.__del__() ? the former decrements
the reference count for x by one, and the latter is only called when
x?s reference count reaches zero."
Plain and simple: When the refcount reaches zero. A few lines down,
however, it says:
> Any code that is based upon assuming memory reclamation takes
> place at any specific time (other than program exit) is erroneous.
That is correct, but the decision when to reclaim memory is not made by
__del__ but by the memory management subsystem after (for instance, in
CPython) calls to PyMem_Free()
> Some implementations do not use a reference counter -- they
> rely solely upon a periodic mark&sweep garbage collector. cf:
Correct again, but the fray in this thread is about when __del__ is
called, not when memory reclaim takes place. Two different things.