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python --version should send output to STDOUT #62538

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python --version should send output to STDOUT#62538
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serhiy-storchaka
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easyinterpreter-core(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or error

Description

@jaalto
jaalto
mannequin
opened on Jul 1, 2013
BPO 18338
Nosy @tiran, @berkerpeksag, @serhiy-storchaka
Files
  • issue18338.diff
  • issue18338.diff: Patch for issue 18338
  • issue18338.diff
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = 'https://github.com/serhiy-storchaka'
closed_at = <Date 2013-07-11.17:03:27.844>
created_at = <Date 2013-07-01.11:01:27.276>
labels = ['interpreter-core', 'easy', 'type-bug']
title = 'python --version should send output to STDOUT'
updated_at = <Date 2018-03-24.15:00:08.695>
user = 'https://bugs.python.org/jaalto'

    bugs.python.org fields:

    activity = <Date 2018-03-24.15:00:08.695>
actor = 'Stefan Sauer'
assignee = 'serhiy.storchaka'
closed = True
closed_date = <Date 2013-07-11.17:03:27.844>
closer = 'serhiy.storchaka'
components = ['Interpreter Core']
creation = <Date 2013-07-01.11:01:27.276>
creator = 'jaalto'
dependencies = []
files = ['30756', '30848', '30881']
hgrepos = []
issue_num = 18338
keywords = ['patch', 'easy']
message_count = 13.0
messages = ['192119', '192122', '192198', '192225', '192228', '192269', '192270', '192605', '192784', '192881', '197071', '314370', '314372']
nosy_count = 9.0
nosy_names = ['jaalto', 'christian.heimes', 'python-dev', 'Ramchandra Apte', 'berker.peksag', 'serhiy.storchaka', 'Matthew.Byrne', 'Michael Dickens', 'Stefan Sauer']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue18338'
versions = ['Python 3.4']

    Activity

    1. jaalto commented on Jul 1, 2013

      @jaalto
      jaaltomannequin
      on Jul 1, 2013
      MannequinAuthor

      C.f. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603851

      When user is calling program with options, it is not an error
      condition to run:

      python --version

      The output is now sent to stderr. Please change to send to stdout as
      in other *nix utilities, in order to collect in shell scrips:

      version=$(python --version)

    2. jaalto
      added
      interpreter-core(Objects, Python, Grammar, and Parser dirs)
      on Jul 1, 2013

    3. tiran commented on Jul 1, 2013

      @tiran
      tiran
      on Jul 1, 2013
      Member

      Your proposal is reasonable. I'm flagging it for Python 3.4+ as it's a backward incompatible modification.

    4. tiran
      added
      type-bugAn unexpected behavior, bug, or error
      on Jul 1, 2013
    5. vstinner
      changed the title [-]option --version should send output to STDOUT[/-] [+]python --version should send output to STDOUT[/+] on Jul 2, 2013
    6. vstinner
      added
      easy
      on Jul 2, 2013

    7. RamchandraApte commented on Jul 2, 2013

      @RamchandraApte
      RamchandraAptemannequin
      on Jul 2, 2013
      Mannequin

      Your proposal is reasonable. I'm flagging it for Python 3.4+ as it's a backward incompatible modification.

      Agree.

    8. berkerpeksag commented on Jul 3, 2013

      @berkerpeksag
      berkerpeksag
      on Jul 3, 2013
      Member

      Here is a patch with an updated test.

      The -v flag also sends the output to stderr. Should that be fixed too? See Modules/main.c:678 and Lib/test/test_cmd_line.py:l47

    9. serhiy-storchaka commented on Jul 3, 2013

      @serhiy-storchaka
      serhiy-storchaka
      on Jul 3, 2013
      Member

      LGTM.

    10. RamchandraApte commented on Jul 4, 2013

      @RamchandraApte
      RamchandraAptemannequin
      on Jul 4, 2013
      Mannequin

      On 3 July 2013 15:16, Berker Peksag <report@bugs.python.org> wrote:

      Berker Peksag added the comment:

      Here is a patch with an updated test.

      The -v flag also sends the output to stderr. Should that be fixed too? See
      Modules/main.c:678 and Lib/test/test_cmd_line.py:l47

      ----------
      keywords: +patch
      nosy: +berker.peksag
      stage: needs patch -> patch review
      Added file: http://bugs.python.org/file30756/issue18338.diff

      No, -v is for debugging purposes and should go to stderr IMO.

    11. RamchandraApte commented on Jul 4, 2013

      @RamchandraApte
      RamchandraAptemannequin
      on Jul 4, 2013
      Mannequin

      No, I think that

      On 3 July 2013 16:06, Serhiy Storchaka <report@bugs.python.org> wrote:

      Serhiy Storchaka added the comment:

      LGTM.

      ----------
      nosy: +serhiy.storchaka

      Python tracker <report@bugs.python.org>
      <http://bugs.python.org/issue18338\>

    12. MatthewByrne commented on Jul 8, 2013

      @MatthewByrne
      MatthewByrnemannequin
      on Jul 8, 2013
      Mannequin

      Simply replced printout from stderr to stdout.

    13. MichaelDickens commented on Jul 9, 2013

      @MichaelDickens
      MichaelDickensmannequin
      on Jul 9, 2013
      Mannequin

      Patch for bpo-18338. Changes output for --version and updates unit test accordingly.

    14. python-dev commented on Jul 11, 2013

      @python-dev
      python-devmannequin
      on Jul 11, 2013
      Mannequin

      New changeset e6384b8b2325 by Serhiy Storchaka in branch 'default':
      Issue bpo-18338: python --version now prints version string to stdout, and
      http://hg.python.org/cpython/rev/e6384b8b2325

    15. serhiy-storchaka
      closed this as completedon Jul 11, 2013
    16. serhiy-storchaka
      self-assigned this
      on Jul 11, 2013

    17. python-dev commented on Sep 6, 2013

      @python-dev
      python-devmannequin
      on Sep 6, 2013
      Mannequin

      New changeset 587bdb940524 by Eli Bendersky in branch 'default':
      Update whatsnew/3.4 wrt. --version going to stdout. bpo-18338, bpo-18920, bpo-18922
      http://hg.python.org/cpython/rev/587bdb940524

    18. StefanSauer commented on Mar 24, 2018

      @StefanSauer
      StefanSauermannequin
      on Mar 24, 2018
      Mannequin

      Is there a workaround for python2? The issue is that autotools is checking that installed tools support --help and --version and it expects those to stdout:

      bad=0; pid=$$; list="gtkdoc-check gtkdoc-depscan gtkdoc-fixxref gtkdoc-mkdb gtkdoc-mkhtml gtkdoc-mkhtml2 gtkdoc-mkman gtkdoc-mkpdf gtkdoc-rebase gtkdoc-scan gtkdoc-scangobj gtkdocize"; for p in $list; do \
  case '  ' in \
   *" $p "* | *" ../../$p "*) continue;; \
  esac; \
  f=`echo "$p" | sed 's,^.*/,,;s,x,x,'`; \
  for opt in --help --version; do \
    if "/home/ensonic/projects/gnome/gtk-doc/gtk-doc-1.27.1/_inst/bin/$f" $opt >c${pid}_.out \
         2>c${pid}_.err </dev/null \
	 && test -n "`cat c${pid}_.out`" \
	 && test -z "`cat c${pid}_.err`"; then :; \
    else echo "$f does not support $opt" 1>&2; bad=1; fi; \
  done; \
done; rm -f c${pid}_.???; exit $bad
gtkdoc-check does not support --version
gtkdoc-fixxref does not support --version
gtkdoc-mkdb does not support --version
gtkdoc-mkhtml does not support --version
gtkdoc-mkhtml2 does not support --version
gtkdoc-mkman does not support --version
gtkdoc-mkpdf does not support --version
gtkdoc-rebase does not support --version
gtkdoc-scan does not support --version
gtkdoc-scangobj does not support --version
Makefile:637: recipe for target 'installcheck-binSCRIPTS' failed

    19. StefanSauer commented on Mar 24, 2018

      @StefanSauer
      StefanSauermannequin
      on Mar 24, 2018
      Mannequin

      Sorry need to find the ticket for argparse ..

    20. ezio-melotti
      transferred this issue fromon Apr 10, 2022
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