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Django settings helpers

Project Description

Just a collection of Django settings helpers.

  1. Requirements.
  2. Settings.
  3. urlconfs helpers.


  • Python 2.6, 2.7, 3.2, 3.3
  • Django 1.4-1.6


Settings class - adds ability to group Django settings with classes. As many text editors and IDEs indexes code symbols, with such approach you can easily navigate to any group and any line of your settings file.

class Apps(Settings):
    def DJANGO_APPS(self): return (
    def THIRD_PARTY_APPS(self): return (
    def OWN_APPS(self): return (
    def INSTALLED_APPS(self):
        return self.DJANGO_APPS() + self.THIRD_PARTY_APPS() + self.OWN_APPS()

With Sublime Text 3 press Cmd+Shift+R and type “THIRD”. Same thing could be done with TEMPLATE_CONTEXT_PROCESSORS, MIDDLEWARE_CLASSES etc.

Config class - injects dictionary of variables into module’s scope:

from classsettings import Config

class REST_FRAMEWORK(Config):
    def DEFAULT_FILTER_BACKENDS(self): return (
    DEFAULT_RENDERER_CLASSES = ('rest_framework.renderers.YAMLRenderer',)

Will result in


And some decorators may be found usefull:

from classsettings import Settings, from_env

class MySettingsGroup(Settings):
    # Will look for `EMAIL_HOST` key in `os.environ`
    # and use `` if such key was not found
    def EMAIL_HOST(self): return ''

    # Will raise Django's `ImproperlyConfigured` exception
    # if such key was not found
    def SECRET_KEY(self): pass

    # Will look for specified key
    def variable(self): pass

    # Will apply `through` callable to result
    def DATABASE_URL(self): return 'sqlite://'

urlconfs helpers

Sample urlconf:

from django.conf.urls import patterns, url

import views

urlpatterns = patterns('',
    url(r'^$', views.ProjectList.as_view(), name='projects_project_list'),

    url(r'^create/$', views.ProjectCreate.as_view(), name='projects_project_create'),
    url(r'^view/(?P<pk>\w+)/$', views.ProjectDetail.as_view(), name='projects_project_view'),
    url(r'^update/(?P<pk>\w+)/$', views.ProjectUpdate.as_view(), name='projects_project_update'),
    url(r'^delete/(?P<pk>\w+)/$', views.ProjectDelete.as_view(), name='projects_project_delete'),

    url('^accounts/(?P<pk>\d+)/$', 'project.accounts.profile_info', name='users_info')
    url('^accounts/edit/$', 'project.accounts.profile_edit', name='users_edit')

is equivalent to

from classsettings.urls import Scope, url

import views

# Define url pattern, views or view name prefix:
# Views resolution:
#   some.module, 'string' => getattr(module, 'string')
#   'scope_str', 'string' => 'string'.format('scope_str', ...)
with Scope(regex='^', views=views, name='projects') as root:
    # Strings are formatted with `str.format`:
    #   value.format(value_of_parent_scope, **scope.context)
    # Additional context variables can be defined and used with `{variable}`
    with Scope(name='{}_project', pk=r'(?P<pk>\w+)') as project:
        # Also supported
        project['pk'] = r'(?P<pk>\w+)'

        # For CBV `.as_view()` is called automatically
        url('{}$', 'ProjectList', name='{}_list')  # url => '^$', name => 'projects_project_list'
        url('{}create/$', 'ProjectCreate', name='{}_create')
        url('{}view/{pk}/$', 'ProjectDetail', name='{}_detail')
        url('{}update/{pk}/$', 'ProjectUpdate', name='{}_update')
        url('{}delete/{pk}/$', 'ProjectDelete', name='{}_delete')

    with Scope(regex='{}accounts/', views='project.accounts', name='users',
        url('{}{user_id}?/$', '{}.profile_info', name='{}_info')
        url('{}edit/$', '{}.profile_edit', name='{}_edit')

urlpatterns = root.urls

For urls defined outside Scope object native django’s url function is used.

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