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bpo-38076: Make struct module PEP-384 compatible (#15805)

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* PEP-384 _struct

* More PEP-384 fixes for _struct

Summary: Add a couple of more fixes for `_struct` that were previously missed such as removing `tp_*` accessors and using `PyBytesWriter` instead of calling `PyBytes_FromStringAndSize` with `NULL`. Also added a test to confirm that `iter_unpack` type is still uninstantiable.

* 📜🤖 Added by blurb_it.
This commit is contained in:
Dino Viehland 2019-09-10 11:18:37 +01:00 • committed by T. Wouters
parent 43c9731334
commit 4f384af067
3 changed files with 180 additions and 150 deletions
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4
Lib/test/test_struct.py
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@ -679,6 +679,10 @@ class UnpackIteratorTest(unittest.TestCase):
with self.assertRaises(struct.error):
s.iter_unpack(b"12")
def test_uninstantiable(self):
iter_unpack_type = type(struct.Struct(">ibcp").iter_unpack(b""))
self.assertRaises(TypeError, iter_unpack_type)
def test_iterate(self):
s = struct.Struct('>IB')
b = bytes(range(1, 16))