New submission from Paul Moore: By default, the launcher tries to launch (the latest version of) Python 2 on the user's machine. This can be altered with the configuration file, and if the user doesn't have Python 2 installed Python 3 will be used. Now that we are at Python 3.6, it's about time to change that default to try Python 3 first.
This was discussed on python-ideas in the thread starting at https://mail.python.org/pipermail/python-ideas/2016-March/038667.html. My summary of the consensus was at https://mail.python.org/pipermail/python-ideas/2016-March/038759.html The key points were: 1. For interactive use, make py.exe launch the latest version installed on the machine, without special-casing a preference for Python 2. 2. For shebang lines where an unversioned name is used, retain the current behaviour (for compatibility with Unix). 3. When the user explicitly chooses a version, or has configured the launcher via the ini file or environment variables, no change to current behaviour. 4. The change is small enough that it doesn't need a PEP. The attached patch implements this behaviour. I assume the patch is to be applied only to Python 3.6, as it is changed behaviour, not a bug fix. ---------- assignee: paul.moore components: Windows files: launcher.diff keywords: needs review, patch messages: 265898 nosy: paul.moore, steve.dower, tim.golden, zach.ware priority: normal severity: normal stage: patch review status: open title: Make py.exe default to Python 3 when used interactively type: behavior versions: Python 3.6 Added file: http://bugs.python.org/file42906/launcher.diff _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27064> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
