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-rw-r--r--Lib/zipfile.py5
-rw-r--r--Misc/NEWS3
2 files changed, 6 insertions, 2 deletions
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index e31c93a..9317135 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -1101,11 +1101,12 @@ class ZipFile:
# set the modified flag so central directory gets written
# even if no files are added to the archive
self._didModify = True
+ self._start_disk = 0
try:
- self.start_dir = self._start_disk = self.fp.tell()
+ self.start_dir = self.fp.tell()
except (AttributeError, OSError):
self.fp = _Tellable(self.fp)
- self.start_dir = self._start_disk = 0
+ self.start_dir = 0
self._seekable = False
else:
# Some file-like objects can provide tell() but not seek()
diff --git a/Misc/NEWS b/Misc/NEWS
index 31fdde1..516c322 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -208,6 +208,9 @@ Core and Builtins
Library
-------
+- Issue #29094: Offsets in a ZIP file created with extern file object and modes
+ "w" and "x" now are relative to the start of the file.
+
- Issue #29079: Prevent infinite loop in pathlib.resolve() on Windows
- Issue #13051: Fixed recursion errors in large or resized