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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => icehouse-3

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https://bugs.launchpad.net/bugs/1280826

Title:
  config generator fails when project enables lazy messages

Status in OpenStack Telemetry (Ceilometer):
  Fix Committed
Status in Cinder:
  In Progress
Status in OpenStack Compute (Nova):
  Fix Released
Status in Oslo - a Library of Common OpenStack Code:
  Fix Committed

Bug description:
  When lazy message translation is enabled in Nova, the check_update.sh
  calls generate_sample.sh, which uses a copy of oslo's
  config/generator.py which produces the following message:

  CRITICAL nova [-] TypeError: Message objects do not support addition.

  The config/generator.py module installs i18n without lazy enabled
  (named parameter 'lazy' not specified):

  gettextutils.install('nova')

  To gather information about the projects options, it loads the project
  modules looking for entry points.   When these modules are loaded,
  they may contain code to enable lazy.   In the case of Nova this is
  the nova/cmds/__init__.py which calls:

  gettextutils.enable_lazy()

  This means that the messages returned with information for the entry
  points are lazy enabled.  Thus when config/generator.py tries to work
  with the help message for the option associated with the Nova modules:

  opt_help += ' (' + OPT_TYPES[opt_type] + ')'

  it fails because opt_help is a gettextutils.Message instance, which
  doesn't support addition.

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