On 3 February 2016 at 17:04, Steve Dower <steve.do...@python.org> wrote: > Rest of the email is spelling out how to create the scenario above, since I > assume people won't believe it :) > > 1. Take Python 3.4.1, install it (Just for Me), zip up the stdlib into > python34.zip and copy the binaries and zip to a "portable" folder > > 2. Update to Python 3.4.2 on the main machine > > 3. Run "-m test test_grammar" with your portable 3.4.1. > > 4. Boom! SyntaxError in test_grammar.py because you picked up the 3.4.2 > stdlib (the error comes from https://hg.python.org/cpython/rev/4ad33d82193d)
Sigh. There's nothing so small that it isn't a compatibility break :-) But of course this process violates the rule "set PYTHONHOME or have a Lib/os.py *file* alongside python.exe". Like you say the rules are subtle enough that people will make mistakes :-( Thanks for the explanation. Paul _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
