STINNER Victor added the comment:
7zip and WinRAR uses the same algorithm than ZipFile._encodeFilename(): try
cp437 or use UTF-8. Eg. if a filename contains ∞ (U+221E), it is encoded to
UTF-8.
WinZIP encodes all filenames to cp437: ∞ (U+221E) is replaced by 8 (U+0038), ☺
(U+263A) is replaced
STINNER Victor added the comment:
Oh, this patch fixes also a bug: ZipFile._RealGetContents() doesn't keep the
unicode flag, so open a ZIP file and then write it somewhere else may change
the unicode flag if unicode flag was set but the filename is also encodable to
UTF-8 (eg. ASCII filename)
New submission from STINNER Victor :
ZipInfo._encodeFilename() tries cp437 encoding or use UTF-8. It is not possible
to decide the encoding.
To workaround #10955 (bootstrap issue with python32.zip), it would be nice to
be able to create a ZIP file using only UTF-8 filenames.
Attached patch ad
