bpo-30017: Allowed calling the close() method of the zip entry writer object (#1041) (#1092)
multiple times. Writing to closed zip entry writer object now always produce
a ValueError.
(cherry picked from commit 4c0d9ea995da595e90e08813b89510de59907802)
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index d7f5beb..06eedec 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -981,6 +981,8 @@
return True
def write(self, data):
+ if self.closed:
+ raise ValueError('I/O operation on closed file.')
nbytes = len(data)
self._file_size += nbytes
self._crc = crc32(data, self._crc)
@@ -991,6 +993,8 @@
return nbytes
def close(self):
+ if self.closed:
+ return
super().close()
# Flush any data from the compressor, and update header info
if self._compressor: