AttributeError: module 'horizon.tables' has no attribute 'PagedTableWithPageMenu'

[men]

My Linux system can only be installed with source code

git clone https://github.com/openstack/horizon.git -b stable/train
[root@controller ~]# cd horizon/
[root@controller horizon]# pip3 install -r requirements.txt
[root@controller horizon]# python3 setup.py install

[root@controller01 openstack-dashboard]# ll
total 8
-rwxr-xr-x 1 root apache 830 Aug 5 09:09 manage.py
drwxr-xr-x 20 root apache 4096 Aug 5 09:08 openstack_dashboard
-rw-r--r-- 1 root root 0 Aug 5 14:40 README.md
drwxr-xr-x 10 root apache 114 Aug 5 09:12 static
[root@controller01 openstack-dashboard]# ls openstack_dashboard/
api defaults.py __init__.py policy.py templatetags usage
conf django_pyscss_fix karma.conf.js __pycache__ test utils
context_processors.py enabled local settings.py themes views.py
contrib exceptions.py locale static theme_settings.py wsgi
dashboards hooks.py management templates urls.py wsgi.py

It's strange to encounter this problem. I don't know how to investigate it？

[root@controller01 openstack-dashboard]# python3 manage.py runserver
/usr/local/lib64/python3.7/site-packages/scss/namespace.py:172: DeprecationWarning: inspect.getargspec() is deprecated since Python 3.0, use inspect.signature() or inspect.getfullargspec()
  argspec = inspect.getargspec(function)
/usr/local/lib64/python3.7/site-packages/scss/selector.py:54: FutureWarning: Possible nested set at position 329
  ''', re.VERBOSE | re.MULTILINE)
/usr/local/lib64/python3.7/site-packages/scss/namespace.py:172: DeprecationWarning: inspect.getargspec() is deprecated since Python 3.0, use inspect.signature() or inspect.getfullargspec()
  argspec = inspect.getargspec(function)
/usr/local/lib64/python3.7/site-packages/scss/selector.py:54: FutureWarning: Possible nested set at position 329
  ''', re.VERBOSE | re.MULTILINE)
Performing system checks...

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0xfffc08045d40>
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
    self.check(display_num_errors=True)
  File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 364, in check
    include_deployment_checks=include_deployment_checks,
  File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 351, in _run_checks
    return checks.run_checks(**kwargs)
  File "/usr/local/lib/python3.7/site-packages/django/core/checks/registry.py", line 73, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/usr/local/lib/python3.7/site-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "/usr/local/lib/python3.7/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
  File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py", line 400, in check
    warnings.extend(check_resolver(pattern))
  File "/usr/local/lib/python3.7/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
  File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py", line 399, in check
    for pattern in self.url_patterns:
  File "/usr/local/lib/python3.7/site-packages/django/utils/functional.py", line 36, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py", line 542, in url_patterns
    iter(patterns)
  File "/usr/local/lib/python3.7/site-packages/horizon/base.py", line 692, in __iter__
    self._setup()
  File "/usr/local/lib/python3.7/site-packages/django/utils/functional.py", line 349, in _setup
    self._wrapped = self._setupfunc()
  File "/usr/local/lib/python3.7/site-packages/horizon/base.py", line 858, in url_patterns
    return self._urls()[0]
  File "/usr/local/lib/python3.7/site-packages/horizon/base.py", line 892, in _urls
    _wrapped_include(dash._decorated_urls)))
  File "/usr/local/lib/python3.7/site-packages/horizon/base.py", line 568, in _decorated_urls
    _wrapped_include(panel._decorated_urls)))
  File "/usr/local/lib/python3.7/site-packages/horizon/base.py", line 340, in _decorated_urls
    urlpatterns = self._get_default_urlpatterns()
  File "/usr/local/lib/python3.7/site-packages/horizon/base.py", line 142, in _get_default_urlpatterns
    urls_mod = import_module('.urls', package_string)
  File "/usr/lib64/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/share/openstack-dashboard/openstack_dashboard/dashboards/project/volumes/urls.py", line 17, in <module>
    from openstack_dashboard.dashboards.project.backups \
  File "/usr/share/openstack-dashboard/openstack_dashboard/dashboards/project/backups/views.py", line 38, in <module>
    class BackupsView(tables.PagedTableWithPageMenu, tables.DataTableView,
AttributeError: module 'horizon.tables' has no attribute 'PagedTableWithPageMenu'

[men (keyi)]

Switch the branch to the master and the same steps will run the dashboard successfully ？？

[Vishal Manchanda (vishalmanchanda)]

@men, hi looks like you are mixing the stable/train branch with master branch because "PagedTableWithPageMenu" class is added in master[1] by this patch https://review.opendev.org/#/c/705004/ . So it is not surprising that you are geetig above error in stable/train beacuse there is no such attribute in stable/train branch [2] .

[1] https://opendev.org/openstack/horizon/src/branch/master/openstack_dashboard/dashboards/project/backups/views.py#L38
[2] https://opendev.org/openstack/horizon/src/branch/stable/train/openstack_dashboard/dashboards/project/backups/views.py#L34

Yeah, if you switch to master branch you will not get this error.