old_contents: 
  VERSION = [0,5,0]
  
  from xadmin.sites import AdminSite, site
  
  class Settings(object):
      pass
  
  
  def autodiscover():
      """
      Auto-discover INSTALLED_APPS admin.py modules and fail silently when
      not present. This forces an import on them to register any admin bits they
      may want.
      """
  
      from importlib import import_module
      from django.conf import settings
      from django.utils.module_loading import module_has_submodule
      setattr(settings, 'CRISPY_TEMPLATE_PACK', 'bootstrap3')
      setattr(settings, 'CRISPY_CLASS_CONVERTERS', {
          "textinput": "textinput textInput form-control",
          "fileinput": "fileinput fileUpload form-control",
          "passwordinput": "textinput textInput form-control",
      })
  
      from xadmin.views import register_builtin_views
      register_builtin_views(site)
  
      # load xadmin settings from XADMIN_CONF module
      try:
          xadmin_conf = getattr(settings, 'XADMIN_CONF', 'xadmin_conf.py')
          conf_mod = import_module(xadmin_conf)
      except Exception:
          conf_mod = None
  
      if conf_mod:
          for key in dir(conf_mod):
              setting = getattr(conf_mod, key)
              try:
                  if issubclass(setting, Settings):
                      site.register_settings(setting.__name__, setting)
              except Exception:
                  pass
  
      from xadmin.plugins import register_builtin_plugins
      register_builtin_plugins(site)
  
      for app in settings.INSTALLED_APPS:
          mod = import_module(app)
          # Attempt to import the app's admin module.
          try:
              before_import_registry = site.copy_registry()
              import_module('%s.adminx' % app)
          except:
              # Reset the model registry to the state before the last import as
              # this import will have to reoccur on the next request and this
              # could raise NotRegistered and AlreadyRegistered exceptions
              # (see #8245).
              site.restore_registry(before_import_registry)
  
              # Decide whether to bubble up this error. If the app just
              # doesn't have an admin module, we can ignore the error
              # attempting to import it, otherwise we want it to bubble up.
              if module_has_submodule(mod, 'adminx'):
                  raise
  
  default_app_config = 'xadmin.apps.XAdminConfig'
  
new_contents: 
  VERSION = (0,6,0)
  
  from xadmin.sites import AdminSite, site
  
  class Settings(object):
      pass
  
  
  def autodiscover():
      """
      Auto-discover INSTALLED_APPS admin.py modules and fail silently when
      not present. This forces an import on them to register any admin bits they
      may want.
      """
  
      from importlib import import_module
      from django.conf import settings
      from django.utils.module_loading import module_has_submodule
      setattr(settings, 'CRISPY_TEMPLATE_PACK', 'bootstrap3')
      setattr(settings, 'CRISPY_CLASS_CONVERTERS', {
          "textinput": "textinput textInput form-control",
          "fileinput": "fileinput fileUpload form-control",
          "passwordinput": "textinput textInput form-control",
      })
  
      from xadmin.views import register_builtin_views
      register_builtin_views(site)
  
      # load xadmin settings from XADMIN_CONF module
      try:
          xadmin_conf = getattr(settings, 'XADMIN_CONF', 'xadmin_conf.py')
          conf_mod = import_module(xadmin_conf)
      except Exception:
          conf_mod = None
  
      if conf_mod:
          for key in dir(conf_mod):
              setting = getattr(conf_mod, key)
              try:
                  if issubclass(setting, Settings):
                      site.register_settings(setting.__name__, setting)
              except Exception:
                  pass
  
      from xadmin.plugins import register_builtin_plugins
      register_builtin_plugins(site)
  
      for app in settings.INSTALLED_APPS:
          mod = import_module(app)
          # Attempt to import the app's admin module.
          try:
              before_import_registry = site.copy_registry()
              import_module('%s.adminx' % app)
          except:
              # Reset the model registry to the state before the last import as
              # this import will have to reoccur on the next request and this
              # could raise NotRegistered and AlreadyRegistered exceptions
              # (see #8245).
              site.restore_registry(before_import_registry)
  
              # Decide whether to bubble up this error. If the app just
              # doesn't have an admin module, we can ignore the error
              # attempting to import it, otherwise we want it to bubble up.
              if module_has_submodule(mod, 'adminx'):
                  raise
  
  default_app_config = 'xadmin.apps.XAdminConfig'
  
subject: Upgrade xadmin version to 0.6.0