Here's one example, albeit from a few years ago

http://aspn.activestate.com/ASPN/Mail/Message/numpy-discussion/1625465

But, I am a numpy novice and so no idea what it actually does in its current form.

On May 16, 2008, at 4:17 AM, Hrvoje Nik?i? wrote:

On Thu, 2008-05-15 at 21:02 -0400, Tom Pinckney wrote:
I found some other references where people were expressing concern
over numpy releasing the GIL due to the fact that other C extensions
could call numpy and unexpectedly have the GIL released on them (or
something like that).

Could you please post links to those?  I'm asking because AFAIK that
concern doesn't really stand. Any (correct) code that releases the GIL
is responsible for reacquiring it before calling *any* Python code, in
fact before doing anything that might touch a Python object or its
refcount.


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