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Issue #26766: Fix _PyBytesWriter_Finish() 

Return a bytearray object when bytearray is requested and when the small buffer
is used.

Fix also test_bytes: bytearray%args must return a bytearray type.
This commit is contained in:
Victor Stinner 2016-04-15 17:52:27 +02:00
parent 12bb6f4c7d
commit e914d41312
2 changed files with 8 additions and 3 deletions
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4
Lib/test/test_bytes.py
View File

@ -492,7 +492,7 @@ class BaseBytesTest:
b = self.type2test(b'%s / 100 = %d%%')
a = b % (b'seventy-nine', 79)
self.assertEqual(a, b'seventy-nine / 100 = 79%')
self.assertIs(type(a), bytes)
self.assertIs(type(a), self.type2test)
def test_imod(self):
b = self.type2test(b'hello, %b!')
@ -504,7 +504,7 @@ class BaseBytesTest:
b = self.type2test(b'%s / 100 = %d%%')
b %= (b'seventy-nine', 79)
self.assertEqual(b, b'seventy-nine / 100 = 79%')
self.assertIs(type(b), bytes)
self.assertIs(type(b), self.type2test)
def test_rmod(self):
with self.assertRaises(TypeError):

7
Objects/bytesobject.c
View File

@ -4150,7 +4150,12 @@ _PyBytesWriter_Finish(_PyBytesWriter *writer, void *str)
result = PyBytes_FromStringAndSize(NULL, 0);
}
else if (writer->use_small_buffer) {
result = PyBytes_FromStringAndSize(writer->small_buffer, size);
if (writer->use_bytearray) {
result = PyByteArray_FromStringAndSize(writer->small_buffer, size);
}
else {
result = PyBytes_FromStringAndSize(writer->small_buffer, size);
}
}
else {
result = writer->buffer;