On 21 Oct 2020, at 14:39, Larry Hastings <larry@hastings.org> wrote:
On 10/21/20 4:04 AM, Antoine Pitrou wrote:
(apart from small fixes relating to borrowed references, and
that's mostly to make PyPy's life easier).
Speaking as the Gilectomy guy: borrowed references are evil. The definition of the valid lifetime of a borrowed reference doesn't exist, because they are a hack (baked into the API!) that we mostly "get away with" just because of the GIL. If I still had wishes left on my monkey's paw I'd wish them away*.

Even with the GIL borrowed references are problematic. There are a lot of cases where using a borrowed reference after calling an API that might run Python code might invalidate the borrowed reference. In general the only safe thing to do with a borrowed reference is to turn it into a strong reference as soon as possible.

Ronald

—

Twitter / micro.blog: @ronaldoussoren

Blog: https://blog.ronaldoussoren.net/

/arry
* Unfortunately, I used my last wish back in February, wishing I could spend more time at home.

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