[GMG-Devel] install failing at gmg dbupdate

[Jim Ottaway]

I've been trying to install mediagoblin on Debian Jessie (Debian
3.16.39-1 (2016-12-30) x86_64 GNU/Linux), following the instructions at
http://mediagoblin.readthedocs.io/en/latest/siteadmin/deploying.html.

It fails when I get to the ./bin/gmg dbupdate step with the backtrace
below.

Any ideas how to get this working?


/srv/mayfayne.jeho.org/mediagoblin$ ./bin/gmg dbupdate
INFO  [alembic.runtime.migration] Context impl SQLiteImpl.
INFO  [alembic.runtime.migration] Will assume non-transactional DDL.
Traceback (most recent call last):
  File "./bin/gmg", line 9, in <module>
    load_entry_point('mediagoblin==0.9.0', 'console_scripts', 'gmg')()
  File 
"/srv/mayfayne.jeho.org/mediagoblin/mediagoblin/gmg_commands/__init__.py", line 
148, in main_cli
    args.func(args)
  File 
"/srv/mayfayne.jeho.org/mediagoblin/mediagoblin/gmg_commands/dbupdate.py", line 
234, in dbupdate
    run_dbupdate(app_config, global_config)
  File 
"/srv/mayfayne.jeho.org/mediagoblin/mediagoblin/gmg_commands/dbupdate.py", line 
165, in run_dbupdate
    run_alembic_migrations(db, app_config, global_config)
  File 
"/srv/mayfayne.jeho.org/mediagoblin/mediagoblin/gmg_commands/dbupdate.py", line 
136, in run_alembic_migrations
    return command.upgrade(cfg, 'heads')
  File 
"/srv/mayfayne.jeho.org/mediagoblin/local/lib/python2.7/site-packages/alembic-0.9.1-py2.7.egg/alembic/command.py",
 line 254, in upgrade
    script.run_env()
  File 
"/srv/mayfayne.jeho.org/mediagoblin/local/lib/python2.7/site-packages/alembic-0.9.1-py2.7.egg/alembic/script/base.py",
 line 416, in run_env
    util.load_python_file(self.dir, 'env.py')
  File 
"/srv/mayfayne.jeho.org/mediagoblin/local/lib/python2.7/site-packages/alembic-0.9.1-py2.7.egg/alembic/util/pyfiles.py",
 line 93, in load_python_file
    module = load_module_py(module_id, path)
  File 
"/srv/mayfayne.jeho.org/mediagoblin/local/lib/python2.7/site-packages/alembic-0.9.1-py2.7.egg/alembic/util/compat.py",
 line 75, in load_module_py
    mod = imp.load_source(module_id, path, fp)
  File "/srv/mayfayne.jeho.org/mediagoblin/mediagoblin/db/migrations/env.py", 
line 63, in <module>
    run_migrations_online()
  File "/srv/mayfayne.jeho.org/mediagoblin/mediagoblin/db/migrations/env.py", 
line 58, in run_migrations_online
    context.run_migrations()
  File "<string>", line 8, in run_migrations
  File 
"/srv/mayfayne.jeho.org/mediagoblin/local/lib/python2.7/site-packages/alembic-0.9.1-py2.7.egg/alembic/runtime/environment.py",
 line 817, in run_migrations
    self.get_context().run_migrations(**kw)
  File 
"/srv/mayfayne.jeho.org/mediagoblin/local/lib/python2.7/site-packages/alembic-0.9.1-py2.7.egg/alembic/runtime/migration.py",
 line 312, in run_migrations
    self.connection.in_transaction()
AttributeError: 'Engine' object has no attribute 'in_transaction'