[Python-Dev] PyWeakref_GetObject() borrows its reference from... whom?

[Greg Ewing]

Nathaniel Smith wrote:
> IIRC to handle
> this gilectomy adds per-object mutexes that you have to hold whenever
> you're mucking around with that object's internals.

What counts as "mucking around with the object's internals",
though?

If I do the C equivalent of:

    x = somedict[5]
    x.dosomething()

am I mucking around with the internals of somedict?
Intuitively, I would not think so. But the way
PyDict_GetItem currently works, this would be
dangerous.

-- 
Greg