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bpo-30017: Allowed calling the close() method of the zip entry writer object (#1041)

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multiple times.  Writing to closed zip entry writer object now always produce
a ValueError.
This commit is contained in:
Serhiy Storchaka 2017-04-12 16:03:23 +03:00 • committed by GitHub
parent 3e0f1fc4e0
commit 4c0d9ea995
3 changed files with 49 additions and 0 deletions
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4
Lib/zipfile.py
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@ -980,6 +980,8 @@ class _ZipWriteFile(io.BufferedIOBase):
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 @@ class _ZipWriteFile(io.BufferedIOBase):
return nbytes
def close(self):
if self.closed:
return
super().close()
# Flush any data from the compressor, and update header info
if self._compressor: