[Bug 1691848] Proposed package upload rejected

[Chris Halse Rogers]

An upload of python3.5 to xenial-proposed has been rejected from the
upload queue for the following reason: "Bug# 1682934 is missing SRU
testcase/impact/regresison potential; all bugs are missing a Zesty
upload which is requried before we could release the Xenial update.".

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https://bugs.launchpad.net/bugs/1691848

Title:
  Python not compiled with -fexceptions in ppc64le

Status in python2.7 package in Ubuntu:
  New
Status in python3.6 package in Ubuntu:
  Fix Released

Bug description:
  Pytorch (https://github.com/pytorch/pytorch) is an application that is
  written in python, C and C++. There's high interoperalibity between
  code written in these languages therex.

  The issue is that there are cases when an exception is thrown by C++
  code that subsequentely calls some C code before being caught.

  In ppc64le builds, without the -fexceptions gcc flag, such exceptions
  are not caught when the execution returns to C++ code from C code.
  This makes some Pytorch tests fail.

  Compiling CPython with -fexceptions seems to solve this issue.

  This was also reported to Debian: https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=862925

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: python2.7 2.7.13-2
  ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
  Uname: Linux 4.10.0-19-generic ppc64le
  .var.log.platform: Error: [Errno 13] Permission denied: '/var/log/platform'
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: ppc64el
  Date: Thu May 18 15:35:54 2017
  InstallationDate: Installed on 2015-11-05 (560 days ago)
  InstallationMedia: Ubuntu-Server 15.04 "Vivid Vervet" - Release ppc64el (20150422)
  JournalErrors:
   Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
         Users in the 'systemd-journal' group can see all messages. Pass -q to
         turn off this notice.
   No journal files were opened due to insufficient permissions.
  ProcLoadAvg: 0.07 0.33 0.43 1/348 20166
  ProcSwaps: Filename				Type		Size	Used	Priority
  ProcVersion: Linux version 4.10.0-19-generic (buildd at bos01-ppc64el-009) (gcc version 6.3.0 20170321 (Ubuntu 6.3.0-10ubuntu1) ) #21-Ubuntu SMP Thu Apr 6 17:03:05 UTC 2017
  SourcePackage: python2.7
  UpgradeStatus: Upgraded to zesty on 2017-04-17 (30 days ago)
  cpu_cores: Number of cores present = 2
  cpu_coreson: Number of cores online = 2
  cpu_smt: SMT=8

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