8000 gh-69093: Add mapping protocol support to sqlite3.Blob by erlend-aasland · Pull Request #91599 · python/cpython · GitHub
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gh-69093: Add mapping protocol support to sqlite3.Blob #91599

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Merged
merged 10 commits into from
Apr 22, 2022
Merged

gh-69093: Add mapping protocol support to sqlite3.Blob #91599

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38b2cdb
gh-69093: Add mapping protocol support to sqlite3.Blob
Apr 16, 2022
8bc5762
Merge branch 'main' into sqlite-blob-add-mapping-protocol
Apr 16, 2022
86e324a
Cast
Apr 16, 2022
37a5c38
Assert lenght and offset
Apr 16, 2022
a179749
Accept all buffer objects
Apr 16, 2022
ed6a9b6
Address review: reword docs and modify example
Apr 18, 2022
233f940
bugfix: use correct offset in inner read/write
Apr 18, 2022
9cbc339
Update Misc/NEWS.d/next/Library/2022-04-14-01-00-31.gh-issue-69093.bm…
Apr 19, 2022
7df4b9d
Address review: verify writes
Apr 19, 2022
cb2619e
Address review: Py_ssize_t iso. int
Apr 19, 2022
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Address review: verify writes
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Erlend E. Aasland committed Apr 19, 2022
commit 7df4b9d394de8febbe3c5056baee4eccd623900a
21 changes: 16 additions & 5 deletions Lib/test/test_sqlite3/test_dbapi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1141,9 +1141,9 @@ def test_blob_write_error_length(self):
self.blob.seek(0, SEEK_SET)
n = len(self.blob)
self.blob.write(b"a" * (n-1))
self.blob.write(b"a" * 1)
self.blob.write(b"a")
with self.assertRaisesRegex(ValueError, "data longer than blob"):
self.blob.write(b"a" * 1)
self.blob.write(b"a")

def test_blob_write_error_row_changed(self):
self.cx.execute("update test set b='aaaa' where rowid=1")
Expand Down Expand Up @@ -1197,11 +1197,22 @@ def test_blob_set_item_with_offset(self):
def test_blob_set_buffer_object(self):
from array import array
self.blob[0] = memoryview(b"1")
self.blob[0] = bytearray(b"1")
self.blob[0] = array("b", [1])
self.assertEqual(self.blob[0], b"1")

self.blob[1] = bytearray(b"2")
self.assertEqual(self.blob[1], b"2")

self.blob[2] = array("b", [4])
self.assertEqual(self.blob[2], b"\x04")

self.blob[0:5] = memoryview(b"12345")
self.blob[0:5] = bytearray(b"12345")
self.assertEqual(self.blob[0:5], b"12345")

self.blob[0:5] = bytearray(b"23456")
self.assertEqual(self.blob[0:5], b"23456")

self.blob[0:5] = array("b", [1, 2, 3, 4, 5])
self.assertEqual(self.blob[0:5], b"\x01\x02\x03\x04\x05")

def test_blob_set_item_negative_index(self):
self.blob[-1] = b"z"
Expand Down
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