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> I thought the rationale for the release() method was to allow sequences like:
> 
> b = bytearray()
> m1 = memoryview(b)
> m1.release() -> must call releasebuffer instantly.
> b.resize(10) -> this might fail otherwise if the garbage collection is too slow.
Well, that would still work with my proposal.
Now consider:
def some_library_function(byteslike):
 with memoryview(byteslike) as m2:
 # do something with m2
with memoryview(some_object) as m1:
 some_library_function(m1)
 ...
 print(m1[0])
That m1 becomes unusable after m2 is released in the library function is
completely counter-intuitive, and will make memoryviews a pain to use in
real life.