bpo-40287: Fix SpooledTemporaryFile.seek() return value (GH-19540)
It has not returned the file position after the seek.
diff --git a/Lib/tempfile.py b/Lib/tempfile.py
index ed15c0f..ba04be8 100644
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -738,7 +738,7 @@
return self._file.readlines(*args)
def seek(self, *args):
- self._file.seek(*args)
+ return self._file.seek(*args)
def tell(self):
return self._file.tell()
diff --git a/Lib/test/test_tempfile.py b/Lib/test/test_tempfile.py
index f4cba0f..69d5de2 100644
--- a/Lib/test/test_tempfile.py
+++ b/Lib/test/test_tempfile.py
@@ -1018,7 +1018,8 @@
# Verify writelines with a SpooledTemporaryFile
f = self.do_create()
f.writelines((b'x', b'y', b'z'))
- f.seek(0)
+ pos = f.seek(0)
+ self.assertEqual(pos, 0)
buf = f.read()
self.assertEqual(buf, b'xyz')
@@ -1036,7 +1037,8 @@
# when that occurs
f = self.do_create(max_size=30)
self.assertFalse(f._rolled)
- f.seek(100, 0)
+ pos = f.seek(100, 0)
+ self.assertEqual(pos, 100)
self.assertFalse(f._rolled)
f.write(b'x')
self.assertTrue(f._rolled)