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Cursor.fetchall() always return list. #1115

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Merged
merged 2 commits into from
May 24, 2023
Merged

Cursor.fetchall() always return list. #1115

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a14fc0c
Cursor.fetchall() always return list.
methane May 24, 2023
d7c3c20
Fix test_nextset_error
methane May 24, 2023
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8 changes: 7 additions & 1 deletion pymysql/cursors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -282,6 +282,8 @@ def fetchmany(self, size=None):
"""Fetch several rows."""
self._check_executed()
if self._rows is None:
# Django expects () for EOF.
# https://github.com/django/django/blob/0c1518ee429b01c145cf5b34eab01b0b92f8c246/django/db/backends/mysql/features.py#L8
return ()
end = self.rownumber + (size or self.arraysize)
result = self._rows[self.rownumber : end]
Expand All @@ -292,7 +294,7 @@ def fetchall(self):
"""Fetch all the rows."""
self._check_executed()
if self._rows is None:
return ()
return []
if self.rownumber:
result = self._rows[self.rownumber :]
else:
Expand Down Expand Up @@ -479,6 +481,10 @@ def fetchmany(self, size=None):
break
rows.append(row)
self.rownumber += 1
if not rows:
# Django expects () for EOF.
# https://github.com/django/django/blob/0c1518ee429b01c145cf5b34eab01b0b92f8c246/django/db/backends/mysql/features.py#L8
return ()
return rows

def scroll(self, value, mode="relative"):
Expand Down
2 changes: 1 addition & 1 deletion pymysql/tests/test_nextset.py
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Expand Up @@ -38,7 +38,7 @@ def test_nextset_error(self):
self.assertEqual([(i,)], list(cur))
with self.assertRaises(pymysql.ProgrammingError):
cur.nextset()
self.assertEqual((), cur.fetchall())
self.assertEqual([], cur.fetchall())

def test_ok_and_next(self):
cur = self.connect(client_flag=CLIENT.MULTI_STATEMENTS).cursor()
Expand Down