Message 329733 - Python tracker

➜

This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author	keeely
Recipients	keeely
Date	2018-11-12.14:38:21
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1542033501.3.0.788709270274.issue35218@psf.upfronthosting.co.za>
In-reply-to

Content
Python 2.7 allows one to capture from one file a list of ZipInfo objects, and then recreate a new file using those ZipInfo objects. The same thing appears to be impossible with Python 3 without resorting to monkey-patches because of a line of code in the writestr() code path ignoring the passed in value of ZipInfo and overwritting it with zeros. See: https://github.com/python/cpython/blob/master/Lib/zipfile.py#L1567 See also a possible solution at: https://stackoverflow.com/questions/53254622/zipfile-header-language-encoding-bit-set-differently-between-python2-and-python3

Python 2.7 allows one to capture from one file a list of ZipInfo objects, and then recreate a new file using those ZipInfo objects.  The same thing appears to be impossible with Python 3 without resorting to monkey-patches because of a line of code in the writestr() code path ignoring the passed in value of ZipInfo and overwritting it with zeros.

See:
https://github.com/python/cpython/blob/master/Lib/zipfile.py#L1567

See also a possible solution at:
https://stackoverflow.com/questions/53254622/zipfile-header-language-encoding-bit-set-differently-between-python2-and-python3

History
Date	User	Action	Args
2018-11-12 14:38:21	keeely	set	recipients: + keeely
2018-11-12 14:38:21	keeely	set	messageid: <1542033501.3.0.788709270274.issue35218@psf.upfronthosting.co.za>
2018-11-12 14:38:21	keeely	link	issue35218 messages
2018-11-12 14:38:21	keeely	create