Glance missing dependency: python-routes python-eventlet python-sqlalchemy python-migrate

The problem is that python-routes dependency has been forgotten.
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Configurando glance (2012.1~e2~20111201.1123-0ubuntu1) ...
Traceback (most recent call last):
  File "/usr/bin/glance-manage", line 47, in <module>
    import glance.registry.db
  File "/usr/lib/python2.7/dist-packages/glance/registry/__init__.py", line 26, in <module>
    from glance.registry import client
  File "/usr/lib/python2.7/dist-packages/glance/registry/client.py", line 28, in <module>
    from glance.registry.api.v1 import images
  File "/usr/lib/python2.7/dist-packages/glance/registry/api/v1/__init__.py", line 18, in <module>
    import routes
ImportError: No module named routes
dpkg: error al procesar glance (--configure):
 el subproceso instalado el script post-installation devolvió el código de salida de error 1
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After installing "python-routes":
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Configurando glance (2012.1~e2~20111201.1123-0ubuntu1) ...
Traceback (most recent call last):
  File "/usr/bin/glance-manage", line 47, in <module>
    import glance.registry.db
  File "/usr/lib/python2.7/dist-packages/glance/registry/__init__.py", line 26, in <module>
    from glance.registry import client
  File "/usr/lib/python2.7/dist-packages/glance/registry/client.py", line 28, in <module>
    from glance.registry.api.v1 import images
  File "/usr/lib/python2.7/dist-packages/glance/registry/api/v1/__init__.py", line 20, in <module>
    from glance.registry.api.v1 import images
  File "/usr/lib/python2.7/dist-packages/glance/registry/api/v1/images.py", line 28, in <module>
    from glance.common import wsgi
  File "/usr/lib/python2.7/dist-packages/glance/common/wsgi.py", line 31, in <module>
    import eventlet
ImportError: No module named eventlet
dpkg: error al procesar glance (--configure):
 el subproceso instalado el script post-installation devolvió el código de salida de error 1
Se encontraron errores al procesar:
 glance
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After installing "python-eventlet", then "python-migrate"...

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: glance 2012.1~e2~20111201.1123-0ubuntu1
ProcVersionSignature: Ubuntu 3.1.0-2.3-generic-pae 3.1.0
Uname: Linux 3.1.0-2-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.90-0ubuntu1
Architecture: i386
CheckboxSubmission: b5976ec70cedde5d3d7e18f32f4be3db
CheckboxSystem: ed86e29ffba809c116a39e33fa9fc45c
Date: Sun Dec 4 14:44:59 2011
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=es_DO.UTF-8
 SHELL=/bin/bash
SourcePackage: glance
UpgradeStatus: Upgraded to precise on 2010-06-12 (540 days ago)
modified.conffile..etc.glance.glance.api.conf: [deleted]
modified.conffile..etc.glance.glance.cache.conf: [deleted]
modified.conffile..etc.glance.glance.registry.conf: [deleted]
modified.conffile..etc.glance.glance.scrubber.conf: [deleted]
modified.conffile..etc.glance.logging.cnf.sample: [deleted]