Aids for code sharing between python2 and python3.

Latest release 20200517: Add date_fromisoformat and datetime_fromisoformat being the datetime.date and datetime.datetime isoformat factories.

This package presents various names in python 3 flavour for common use in python 2 and python 3.

Function ustr(s, e='utf-8', errors='strict')

Upgrade string to unicode: no-op for python 3.

Release Log

Release 20200517: Add date_fromisoformat and datetime_fromisoformat being the datetime.date and datetime.datetime isoformat factories.

Release 20200229: Minor fixes.

Release 20190729: Add DEVNULL, which only arrived with 3.3.

Release 20190331: cs.py3._for3.raise3: bugfix raise-with-traceback.

Release 20190108: New raise_from function to provide raise...from in py3 and plain raise in py2.

Release 20181108: Small import fix for pread.

Release 20180805: Implement pread for systems lacking os.pread.

Release 20170903:

• Make into a package subsuming cs.py3_for2 and cs.py3_for3.
• Implementation of struct.iter_unpack.
• Make bytes.eq work with str for Python 2.
• New name joinbytes for Python 2 and 3.
• Backports for Python 2.5.

Release 20160828: Use "install_requires" instead of "requires" in DISTINFO.

Release 20160827:

• Move python 2 and 3 specific code into cs.py3_for2 and cs.py3_for3.
• Do not bother with StringIO and BytesIO, modules can get them directly from the io module.
• Redo python 2 bytes class.
• Python3 compatible versions of struct.pack and struct.unpack.

Release 20150126: bugfix py2 ustr()

Release 20150120: cs.py3: add contains to python 2 bytes type

Release 20150112: Rerelease with separate README.rst file.

Release 20150111: ustr: accept errors= parameter, default "strict"; update PyPI distinfo and arrangements

Release 20150103: initial release tag for cs.py3