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Re: [Bug 1378888] Re: OptionParser on PPC64LE does not split args correctly

 

Am 09.10.2014 um 15:49 schrieb Tony Reix:
> Hi Breno
> OK. There is a place where to get an install image for Ubuntu 14.10 for PPC64 LE.
> Since the PPC64/LE machines I use are managed by another team, it may be complicated/long to get them agree to install a machine with something unstable. Anyway, I'll ask if it is possible.
> 
> Now, why do you think that the issue is in the Ubuntu system and not simply in the port of the Python 2.7.6 on PPC64/LE ?
> I don't know a lot about Python, however I guess that there is probably C code that may have an issue.

I don't think there is any ppc64 specific.  I'd like to understand the issue
first, and a reproducer with a single test case would be much appreciated.

Of course, this could be a miscompilation of python2.7 on ppc64el, but that is a
wild guess, given that the python testsuite for this build doesn't show any errors.

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https://bugs.launchpad.net/bugs/1378888

Title:
  OptionParser on PPC64LE does not split args correctly

Status in “python2.7” package in Ubuntu:
  New

Bug description:
  The issue appears on PPC64 LE.
  It is OK on (Ubuntu) x86_64.
  Version of Python is 2.7.6 on both systems.
  The issue is demonstrated while running AVRO Python tests (in lang/py : ant test).

  
  - On Ubuntu / PPC64 LE :

  $ pwd
  ..../lang/py
  $ export PYTHONPATH=./build/src
  $ /home/tony/AVRO/avro-FromFreshIBMSOEGitHub/lang/py/build/test/../scripts/avro cat /tmp/REIX --fields 'first, last'
  {"first": "daffy"}
  {"first": "bugs"}
  {"first": "tweety"}
  {"first": "road"}
  {"first": "wile"}
  {"first": "pepe"}
  {"first": "foghorn"}
  Usage: avro cat|write [options] FILE [FILE...]

  avro: error: Can't open last - [Errno 2] No such file or directory: 'last'
  $ echo $?
  2

  The issue is that 'first, last' is not parsed correctly. The white
  space between "," and "last" is parsed in a way that makes "last" been
  interpreted as a "FILE" instead of an option.

  
  Without the white space, that works fine:

  $ /home/tony/AVRO/avro-FromFreshIBMSOEGitHub/lang/py/build/test/../scripts/avro cat /tmp/REIX --fields 'first,last'
  {"last": "duck", "first": "daffy"}
  {"last": "bunny", "first": "bugs"}
  {"last": "", "first": "tweety"}
  {"last": "runner", "first": "road"}
  {"last": "e", "first": "wile"}
  {"last": "le pew", "first": "pepe"}
  {"last": "leghorn", "first": "foghorn"}
  $ echo $?
  0

  
  - On Ubuntu / x86_64, both 'first, last' and 'first,last' are OK:

  $ pwd
  ..../lang/py
  $ export PYTHONPATH=./build/src
  $ build/test/../scripts/avro cat /tmp/REIX --fields 'first, last'
  {"last": "duck", "first": "daffy"}
  {"last": "bunny", "first": "bugs"}
  {"last": "", "first": "tweety"}
  {"last": "runner", "first": "road"}
  {"last": "e", "first": "wile"}
  {"last": "le pew", "first": "pepe"}
  {"last": "leghorn", "first": "foghorn"}
  $ echo $?
  0

  
  Source code of: /home/tony/AVRO/avro-FromFreshIBMSOEGitHub/lang/py/build/test/../scripts/avro  is:

  def main(argv=None):
      import sys
      from optparse import OptionParser, OptionGroup

      argv = argv or sys.argv

      parser = OptionParser(description="Display/write for Avro files",
                        version="1.7.4",
                        usage="usage: %prog cat|write [options] FILE [FILE...]")
  ....

  So, OptionParser() does not work on PPC64 like it does on x86_64.

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