[issue18920] argparse module version action
Roundup Robot added the comment: New changeset ec9a4b77f37b by Eli Bendersky in branch 'default': Issue #18920: argparse's default version action (for -v, --version) should http://hg.python.org/cpython/rev/ec9a4b77f37b -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Eli Bendersky added the comment: Thanks, I moved the NEWS entry to the right place. Yes, all tests pass. I'll update whatsnew separately. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Roundup Robot added the comment: New changeset 587bdb940524 by Eli Bendersky in branch 'default': Update whatsnew/3.4 wrt. --version going to stdout. #18338, #18920, #18922 http://hg.python.org/cpython/rev/587bdb940524 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Changes by Eli Bendersky eli...@gmail.com: -- resolution: - fixed stage: patch review - committed/rejected status: open - closed versions: -Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
New submission from Wolfgang Maier: Hi, I just noticed that version output generated via the **'version' action** of the **argparse** module is routed to stderr. I'd expect regular output to go to stdout instead. The current behavior also seems inconsistent to me because --help prints to stdout. Best, Wolfgang -- messages: 196905 nosy: wolma priority: normal severity: normal status: open title: argparse module version action type: behavior versions: Python 3.2, Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Eli Bendersky added the comment: Yes, it seems like an oversight to me. Printing --version to stdout is more customary (Python itself does it, and most other tools do too). A question comes up about backwards compatibility. I would definitely not change it in 2.x - it's just not worth it. As for 3.x, should this go into 3.3 too or just 3.4? -- nosy: +bethard, eli.bendersky, serhiy.storchaka versions: +Python 3.4 -Python 3.2, Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Ezio Melotti added the comment: Only on 3.4. Python prints the version on stdout since 3.4 -- before it used stderr: 3.3$ ./python -V 2 /dev/null 3.3$ ./python -V /dev/null Python 3.3.2+ 3.4$ ./python -V 2 /dev/null Python 3.4.0a1+ 3.4$ ./python -V /dev/null This might also explain why argparse uses stderr (other modules/scripts in the stdlib might do the same too). -- keywords: +easy nosy: +ezio.melotti stage: - needs patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Eli Bendersky added the comment: On Wed, Sep 4, 2013 at 6:26 AM, Ezio Melotti rep...@bugs.python.org wrote: Ezio Melotti added the comment: Only on 3.4. Python prints the version on stdout since 3.4 -- before it used stderr: 3.3$ ./python -V 2 /dev/null 3.3$ ./python -V /dev/null Python 3.3.2+ 3.4$ ./python -V 2 /dev/null Python 3.4.0a1+ 3.4$ ./python -V /dev/null This might also explain why argparse uses stderr (other modules/scripts in the stdlib might do the same too). Ah, right. On 3.4 Python's main.c uses printf for --version; on earlier versions it's fprintf(stderr...) I guess it's a no-brainer then; 3.4 has to be changed, but not earlier versions. I'll whip up a quick patch. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Eli Bendersky added the comment: The Python executable change is from #18338 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Eli Bendersky added the comment: Patch attached -- keywords: +patch stage: needs patch - patch review Added file: http://bugs.python.org/file31587/issue18920.1.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Serhiy Storchaka added the comment: You misplace Misc/NEWS entry in wrong section -- What's New in Python 3.4.0 Alpha 1. I think this change (as change of issue18338) worths the mentioning in Doc/whatsnew/3.4.rst. Did you run all test suite? This change can affect other tests. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18920] argparse module version action
Serhiy Storchaka added the comment: This might also explain why argparse uses stderr (other modules/scripts in the stdlib might do the same too). Lib/trace.py, Tools/pynche/Main.py, and Tools/i18n/pygettext.py write to the stdout. Lib/smtpd.py and Tools/i18n/msgfmt.py write to the stderr. The optparse module also writes to the stdout. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18920 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
