> On 21 Oct 2020, at 14:39, Larry Hastings <la...@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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