Author skrah
Recipients jcon, kermode, mark.dickinson, ncoghlan, petri.lehtinen, pitrou, pv, rupole, skrah, teoliphant, vstinner
Date 2011-07-06.12:42:22
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Message-id <1309956143.07.0.342972945457.issue10181@psf.upfronthosting.co.za>
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[The first part of the message again, this time via the web interface.]

Antoine is right, this needs to be fixed. I think that for *practical*
purposes, the existing release() method already behaves like a tryrelease()
method:


>>> b = bytearray(b'123456789')
>>> m1 = memoryview(b)
>>> m2 = memoryview(m1)
>>> m1.release()
>>> b.append(1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
BufferError: Existing exports of data: object cannot be re-sized
>>>


So while m1.release() in fact *does* release a buffer, the desired
effect (freeing up 'b' for subsequent operations) only happens
after also calling m2.release(). This applies to Python and NumPy
objects.
History
Date User Action Args
2011-07-06 12:42:23skrahsetrecipients: + skrah, teoliphant, mark.dickinson, ncoghlan, rupole, kermode, pitrou, vstinner, pv, jcon, petri.lehtinen
2011-07-06 12:42:23skrahsetmessageid: <1309956143.07.0.342972945457.issue10181@psf.upfronthosting.co.za>
2011-07-06 12:42:22skrahlinkissue10181 messages
2011-07-06 12:42:22skrahcreate