Configuration

The debug toolbar provides two settings that you can add in your project’s settings module to customize its behavior.

Note

Do you really need a customized configuration?

The debug toolbar ships with a default configuration that is considered sane for the vast majority of Django projects. Don’t copy-paste blindly the default values shown below into you settings module! It’s useless and it’ll prevent you from taking advantage of better defaults that may be introduced in future releases.

DEBUG_TOOLBAR_PANELS

This setting specifies the full Python path to each panel that you want included in the toolbar. It works like Django’s MIDDLEWARE setting. The default value is:

DEBUG_TOOLBAR_PANELS = [
    'debug_toolbar.panels.versions.VersionsPanel',
    'debug_toolbar.panels.timer.TimerPanel',
    'debug_toolbar.panels.settings.SettingsPanel',
    'debug_toolbar.panels.headers.HeadersPanel',
    'debug_toolbar.panels.request.RequestPanel',
    'debug_toolbar.panels.sql.SQLPanel',
    'debug_toolbar.panels.staticfiles.StaticFilesPanel',
    'debug_toolbar.panels.templates.TemplatesPanel',
    'debug_toolbar.panels.cache.CachePanel',
    'debug_toolbar.panels.signals.SignalsPanel',
    'debug_toolbar.panels.logging.LoggingPanel',
    'debug_toolbar.panels.redirects.RedirectsPanel',
]

This setting allows you to:

• add built-in panels that aren’t enabled by default,
• add third-party panels,
• remove built-in panels,
• change the order of panels.

DEBUG_TOOLBAR_CONFIG

This dictionary contains all other configuration options. Some apply to the toolbar itself, others are specific to some panels.

Toolbar options

• DISABLE_PANELS

  Default: {'debug_toolbar.panels.redirects.RedirectsPanel'}

  This setting is a set of the full Python paths to each panel that you want disabled (but still displayed) by default.

• INSERT_BEFORE

  Default: '</body>'

  The toolbar searches for this string in the HTML and inserts itself just before.

• RENDER_PANELS

  Default: None

  If set to False, the debug toolbar will keep the contents of panels in memory on the server and load them on demand. If set to True, it will render panels inside every page. This may slow down page rendering but it’s required on multi-process servers, for example if you deploy the toolbar in production (which isn’t recommended).

  The default value of None tells the toolbar to automatically do the right thing depending on whether the WSGI container runs multiple processes. This setting allows you to force a different behavior if needed.

• RESULTS_CACHE_SIZE

  Default: 10

  The toolbar keeps up to this many results in memory.

• ROOT_TAG_EXTRA_ATTRS

  Default: ''

  This setting is injected in the root template div in order to avoid conflicts with client-side frameworks. For example, when using the debug toolbar with Angular.js, set this to 'ng-non-bindable' or 'class="ng-non-bindable"'.

• SHOW_COLLAPSED

  Default: False

  If changed to True, the toolbar will be collapsed by default.

• SHOW_TOOLBAR_CALLBACK

  Default: 'debug_toolbar.middleware.show_toolbar'

  This is the dotted path to a function used for determining whether the toolbar should show or not. The default checks are that DEBUG must be set to True and the IP of the request must be in INTERNAL_IPS. You can provide your own function callback(request) which returns True or False.

  For versions < 1.8, the callback should also return False for AJAX requests. Since version 1.8, AJAX requests are checked in the middleware, not the callback. This allows reusing the callback to verify access to panel views requested via AJAX.

Panel options

• EXTRA_SIGNALS

  Default: []

  Panel: signals

  A list of custom signals that might be in your project, defined as the Python path to the signal.

• ENABLE_STACKTRACES

  Default: True

  Panels: cache, SQL

  If set to True, this will show stacktraces for SQL queries and cache calls. Enabling stacktraces can increase the CPU time used when executing queries.

• HIDE_IN_STACKTRACES

  Default: ('socketserver', 'threading', 'wsgiref', 'debug_toolbar', 'django').

  Panels: cache, SQL

  Useful for eliminating server-related entries which can result in enormous DOM structures and toolbar rendering delays.

• PROFILER_MAX_DEPTH

  Default: 10

  Panel: profiling

  This setting affects the depth of function calls in the profiler’s analysis.

• SHOW_TEMPLATE_CONTEXT

  Default: True

  Panel: templates

  If set to True then a template’s context will be included with it in the template debug panel. Turning this off is useful when you have large template contexts, or you have template contexts with lazy datastructures that you don’t want to be evaluated.

• SKIP_TEMPLATE_PREFIXES

  Default: ('django/forms/widgets/', 'admin/widgets/')

  Panel: templates.

  Templates starting with those strings are skipped when collecting rendered templates and contexts. Template-based form widgets are skipped by default because the panel HTML can easily grow to hundreds of megabytes with many form fields and many options.

• SQL_WARNING_THRESHOLD

  Default: 500

  Panel: SQL

  The SQL panel highlights queries that took more that this amount of time, in milliseconds, to execute.

Here’s what a slightly customized toolbar configuration might look like:

# This example is unlikely to be appropriate for your project.
DEBUG_TOOLBAR_CONFIG = {
    # Toolbar options
    'RESULTS_CACHE_SIZE': 3,
    'SHOW_COLLAPSED': True,
    # Panel options
    'SQL_WARNING_THRESHOLD': 100,   # milliseconds
}