[Python-checkins] bpo-40287: Fix SpooledTemporaryFile.seek() return value (GH-19540)

Miss Islington (bot) webhook-mailer at python.org
Fri Apr 17 03:13:39 EDT 2020


https://github.com/python/cpython/commit/11ae7d075293fe855c8af26b577656d1026cd9bb
commit: 11ae7d075293fe855c8af26b577656d1026cd9bb
branch: 3.7
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2020-04-17T00:13:34-07:00
summary:

bpo-40287: Fix SpooledTemporaryFile.seek() return value (GH-19540)


It has not returned the file position after the seek.
(cherry picked from commit 485e715cb1ff92bc9882cd51ec32589f9cb30503)

Co-authored-by: Inada Naoki <songofacandy at gmail.com>

files:
A Misc/NEWS.d/next/Library/2020-04-15-17-21-48.bpo-40287.-mkEJH.rst
M Lib/tempfile.py
M Lib/test/test_tempfile.py

diff --git a/Lib/tempfile.py b/Lib/tempfile.py
index 24f673c64aa8d..f92db5313215e 100644
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -744,7 +744,7 @@ def readlines(self, *args):
         return self._file.readlines(*args)
 
     def seek(self, *args):
-        self._file.seek(*args)
+        return self._file.seek(*args)
 
     @property
     def softspace(self):
diff --git a/Lib/test/test_tempfile.py b/Lib/test/test_tempfile.py
index c0464200a3aa3..2d47e70bd0328 100644
--- a/Lib/test/test_tempfile.py
+++ b/Lib/test/test_tempfile.py
@@ -1034,7 +1034,8 @@ def test_writelines(self):
         # 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')
 
@@ -1052,7 +1053,8 @@ def test_sparse(self):
         # 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)
diff --git a/Misc/NEWS.d/next/Library/2020-04-15-17-21-48.bpo-40287.-mkEJH.rst b/Misc/NEWS.d/next/Library/2020-04-15-17-21-48.bpo-40287.-mkEJH.rst
new file mode 100644
index 0000000000000..d4db192b71076
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-04-15-17-21-48.bpo-40287.-mkEJH.rst
@@ -0,0 +1 @@
+Fixed ``SpooledTemporaryFile.seek()`` to return the position.



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