[Bug 1668578] Re: Newton package needs to bump dependency on python-pecan

[Chuck Short]

** Description changed:

- With neutron=2:9.1.1-0ubuntu1 installed on Xenial with Newton UCA I get:
+ [Impact]
  
- # neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head
- Traceback (most recent call last):
-   File "/usr/bin/neutron-db-manage", line 10, in <module>
-     sys.exit(main())
-   File "/usr/lib/python2.7/dist-packages/neutron/db/migration/cli.py", line 686, in main
-     return_val |= bool(CONF.command.func(config, CONF.command.name))
-   File "/usr/lib/python2.7/dist-packages/neutron/db/migration/cli.py", line 205, in do_upgrade
-     run_sanity_checks(config, revision)
-   File "/usr/lib/python2.7/dist-packages/neutron/db/migration/cli.py", line 670, in run_sanity_checks
-     script_dir.run_env()
-   File "/usr/lib/python2.7/dist-packages/alembic/script/base.py", line 407, in run_env
-     util.load_python_file(self.dir, 'env.py')
-   File "/usr/lib/python2.7/dist-packages/alembic/util/pyfiles.py", line 93, in load_python_file
-     module = load_module_py(module_id, path)
-   File "/usr/lib/python2.7/dist-packages/alembic/util/compat.py", line 79, in load_module_py
-     mod = imp.load_source(module_id, path, fp)
-   File "/usr/lib/python2.7/dist-packages/neutron/db/migration/alembic_migrations/env.py", line 24, in <module>
-     from neutron.db.migration.models import head  # noqa
-   File "/usr/lib/python2.7/dist-packages/neutron/db/migration/models/head.py", line 29, in <module>
-     from neutron.db import agents_db  # noqa
-   File "/usr/lib/python2.7/dist-packages/neutron/db/agents_db.py", line 42, in <module>
-     from neutron.extensions import agent as ext_agent
-   File "/usr/lib/python2.7/dist-packages/neutron/extensions/agent.py", line 25, in <module>
-     from neutron.api.v2 import base
-   File "/usr/lib/python2.7/dist-packages/neutron/api/v2/base.py", line 38, in <module>
-     from neutron import quota
-   File "/usr/lib/python2.7/dist-packages/neutron/quota/__init__.py", line 30, in <module>
-     from neutron.db.quota import api as quota_api
-   File "/usr/lib/python2.7/dist-packages/neutron/db/quota/api.py", line 130, in <module>
-     def set_quota_usage_dirty(context, resource, tenant_id, dirty=True):
-   File "/usr/lib/python2.7/dist-packages/neutron/db/api.py", line 144, in decorator
-     ctx_arg_index = p_util.getargspec(f).args.index(context_var_name)
-   File "/usr/lib/python2.7/dist-packages/pecan/util.py", line 44, in getargspec
-     reverse=True
-   File "/usr/lib/python2.7/dist-packages/pecan/util.py", line 43, in <lambda>
-     key=lambda c: 'self' in c.cell_contents.__code__.co_varnames,
+ When installing neutron from the Newton UCA the following traceback
+ occurs:
+ 
+     def set_quota_usage_dirty(context, resource, tenant_id, dirty=True):
+   File "/usr/lib/python2.7/dist-packages/neutron/db/api.py", line 144, in decorator
+     ctx_arg_index = p_util.getargspec(f).args.index(context_var_name)
+   File "/usr/lib/python2.7/dist-packages/pecan/util.py", line 44, in getargspec
+     reverse=True
+   File "/usr/lib/python2.7/dist-packages/pecan/util.py", line 43, in <lambda>
+     key=lambda c: 'self' in c.cell_contents.__code__.co_varnames,
  AttributeError: '_TransactionContextManager' object has no attribute '__code__'
  
- This is with python-pecan = 1.0.2-2ubuntu1 installed from Xenial.
- Updating to python-pecan 1.1.2-0ubuntu1~cloud0 from UCA solves the
- issue.
+ This is due to a older version of python-pecan being required for
+ neutron to install properly.
+ 
+ [Test Case]
+ Install neutron with a newer version of pecan and see if the traceback still occurs.
+ 
+ [Regression potential]
+ None since newer versions of neutron will have the same issue. When newer pecan versions are installed.

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https://bugs.launchpad.net/bugs/1668578

Title:
  Newton package needs to bump dependency on python-pecan

Status in neutron package in Ubuntu:
  New

Bug description:
  [Impact]

  When installing neutron from the Newton UCA the following traceback
  occurs:

      def set_quota_usage_dirty(context, resource, tenant_id, dirty=True):
    File "/usr/lib/python2.7/dist-packages/neutron/db/api.py", line 144, in decorator
      ctx_arg_index = p_util.getargspec(f).args.index(context_var_name)
    File "/usr/lib/python2.7/dist-packages/pecan/util.py", line 44, in getargspec
      reverse=True
    File "/usr/lib/python2.7/dist-packages/pecan/util.py", line 43, in <lambda>
      key=lambda c: 'self' in c.cell_contents.__code__.co_varnames,
  AttributeError: '_TransactionContextManager' object has no attribute '__code__'

  This is due to a older version of python-pecan being required for
  neutron to install properly.

  [Test Case]
  Install neutron with a newer version of pecan and see if the traceback still occurs.

  [Regression potential]
  None since newer versions of neutron will have the same issue. When newer pecan versions are installed.

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