bpo-34035: Fix several AttributeError in zipfile seek() methods. (GH-8527)
(cherry picked from commit 3f8c6913b82ed9c05e57175bcbfeacde46c598e3)
Co-authored-by: Mickaël Schoentgen <contact@tiger-222.fr>
diff --git a/Lib/test/test_zipfile.py b/Lib/test/test_zipfile.py
index 61c3e34..ac9a4ff 100644
--- a/Lib/test/test_zipfile.py
+++ b/Lib/test/test_zipfile.py
@@ -1646,6 +1646,8 @@
self.assertEqual(fp.read(5), txt[bloc:bloc+5])
fp.seek(0, os.SEEK_END)
self.assertEqual(fp.tell(), len(txt))
+ fp.seek(0, os.SEEK_SET)
+ self.assertEqual(fp.tell(), 0)
# Check seek on memory file
data = io.BytesIO()
with zipfile.ZipFile(data, mode="w") as zipf:
@@ -1661,6 +1663,8 @@
self.assertEqual(fp.read(5), txt[bloc:bloc+5])
fp.seek(0, os.SEEK_END)
self.assertEqual(fp.tell(), len(txt))
+ fp.seek(0, os.SEEK_SET)
+ self.assertEqual(fp.tell(), 0)
def tearDown(self):
unlink(TESTFN)
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index b90b60f..2757ce9 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -701,11 +701,11 @@
def seek(self, offset, whence=0):
with self._lock:
- if self.writing():
+ if self._writing():
raise ValueError("Can't reposition in the ZIP file while "
"there is an open writing handle on it. "
"Close the writing handle before trying to read.")
- self._file.seek(self._pos)
+ self._file.seek(offset, whence)
self._pos = self._file.tell()
return self._pos
@@ -1021,14 +1021,13 @@
read_offset = 0
elif read_offset < 0:
# Position is before the current position. Reset the ZipExtFile
-
self._fileobj.seek(self._orig_compress_start)
self._running_crc = self._orig_start_crc
self._compress_left = self._orig_compress_size
self._left = self._orig_file_size
self._readbuffer = b''
self._offset = 0
- self._decompressor = zipfile._get_decompressor(self._compress_type)
+ self._decompressor = _get_decompressor(self._compress_type)
self._eof = False
read_offset = new_pos