changeset:   105919:342bc734f523
branch:      2.7
parent:      105917:1d5b4426fe87
user:        Serhiy Storchaka <storchaka@gmail.com>
date:        Sun Jan 01 19:04:09 2017 +0200
files:       Lib/zipfile.py Misc/NEWS
description:
Issue #29094: Offsets in a ZIP file created with extern file object and modes
"w" now are relative to the start of the file.


diff -r 1d5b4426fe87 -r 342bc734f523 Lib/zipfile.py
--- a/Lib/zipfile.py	Sun Jan 01 02:51:46 2017 +0300
+++ b/Lib/zipfile.py	Sun Jan 01 19:04:09 2017 +0200
@@ -772,7 +772,7 @@
                 # set the modified flag so central directory gets written
                 # even if no files are added to the archive
                 self._didModify = True
-                self._start_disk = self.fp.tell()
+                self._start_disk = 0
             elif key == 'a':
                 try:
                     # See if file is a zip file
diff -r 1d5b4426fe87 -r 342bc734f523 Misc/NEWS
--- a/Misc/NEWS	Sun Jan 01 02:51:46 2017 +0300
+++ b/Misc/NEWS	Sun Jan 01 19:04:09 2017 +0200
@@ -15,6 +15,9 @@
 Library
 -------
 
+- Issue #29094: Offsets in a ZIP file created with extern file object and mode
+  "w" now are relative to the start of the file.
+
 - Issue #13051: Fixed recursion errors in large or resized
   curses.textpad.Textbox.  Based on patch by Tycho Andersen.