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gh-83791: Raise TypeError for len(memoryview_0d) (#18463)

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Changes the behaviour of `len` on a zero-dimensional `memoryview` to raise `TypeError`. Previously, `len` would return `1`.
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Eric Wieser 2023-04-22 17:32:47 +01:00 • committed by GitHub
parent caed49448d
commit 3d2a46845b
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5 changed files with 31 additions and 22 deletions
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6
Lib/test/test_buffer.py
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@ -965,8 +965,10 @@ class TestBufferProtocol(unittest.TestCase):
self.assertEqual(m.strides, tuple(strides))
self.assertEqual(m.suboffsets, tuple(suboffsets))
n = 1 if ndim == 0 else len(lst)
self.assertEqual(len(m), n)
if ndim == 0:
self.assertRaises(TypeError, len, m)
else:
self.assertEqual(len(m), len(lst))
rep = result.tolist() if fmt else result.tobytes()
self.assertEqual(rep, lst)