bpo-30017: Allowed calling the close() method of the zip entry writer object (#1041)
multiple times. Writing to closed zip entry writer object now always produce
a ValueError.
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index 550e64f..988f39e 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -980,6 +980,8 @@
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)
@@ -990,6 +992,8 @@
return nbytes
def close(self):
+ if self.closed:
+ return
super().close()
# Flush any data from the compressor, and update header info
if self._compressor: