tools for development and debugging in python

DISQUSTools and Stu!

David Cramertwitter.com/zeeg

Friday, July 15, 2011

django-debug-toolbar


$ pip install django-debug-toolbar

# settings.pyINSTALLED_APPS = ( 'debug_toolbar',)

MIDDLEWARE_CLASSES = ( 'debug_toolbar.middleware.DebugToolbarMiddleware',)

INTERNAL_IPS = ('127.0.0.1',)


Extending the Toolbar

class SettingsVarsDebugPanel(DebugPanel): """ A panel to display all variables in django.conf.settings """ name = 'SettingsVars' has_content = True

def nav_title(self): return _('Settings')

def title(self): return _('Settings')

def content(self): context = self.context.copy() context.update({ 'settings': get_safe_settings(), }) return as_string('debug_toolbar/panels/settings.html', context)



DEBUG_TOOLBAR_PANELS = ( 'debug_toolbar.panels.version.VersionDebugPanel', 'debug_toolbar.panels.timer.TimerDebugPanel', 'debug_toolbar.panels.settings_vars.SettingsVarsDebugPanel', 'debug_toolbar.panels.headers.HeaderDebugPanel', 'debug_toolbar.panels.request_vars.RequestVarsDebugPanel', 'debug_toolbar.panels.template.TemplateDebugPanel', 'debug_toolbar.panels.sql.SQLDebugPanel', 'debug_toolbar.panels.signals.SignalDebugPanel', 'debug_toolbar.panels.logger.LoggingPanel', )


Werkzeugw/ django-devserver


$ pip install django-devserver

# settings.pyINSTALLED_APPS = ( 'devserver',)

$ python manage.py runserver


• SQL Queries (Realtime and Summarized)

• Profiling (Execution time, Memory Usage)

• Cache usage summary

• Ajax requests

• Session information

• Write your own!


class AjaxDumpModule(DevServerModule): """ Dumps the content of all AJAX responses. """

logger_name = 'ajax' def process_response(self, request, response): if request.is_ajax(): self.logger.info(response.content)



DEVSERVER_MODULES = ( 'devserver.modules.sql.SQLSummaryModule', 'devserver.modules.ajax.AjaxDumpModule’, 'devserver.modules.profile.ProfileSummaryModule', 'devserver.modules.request.SessionInfoModule', 'devserver.modules.profile.MemoryUseModule', 'devserver.modules.profile.LeftOversModule', 'devserver.modules.cache.CacheSummaryModule', )


Sentry


$ pip install django-sentry

# settings.pyINSTALLED_APPS = ( 'sentry', 'sentry.client',)


# settings.pyMIDDLEWARE_CLASSES = ( 'sentry.client.middleware.SentryResponseErrorIdMiddleware',)

# 500.htmlSorry friends, something’s not working.

{% if request.sentry.id %} If you need assistance, you may reference this error as {{ request.sentry.id }}.{% endif %}

• Builtin support for Celery

• Server/Client (clients can be any language)

• 2.x powered by Flask/Redis (no Django)


Gargoyle


$ pip install gargoyle

# settings.pyINSTALLED_APPS = ( 'gargoyle',)


from gargoyle import gargoyle

def my_view(request): if gargoyle.is_active('awesome', request): return 'new happy version :D' else: return 'old sad version :('


class HostConditionSet(ConditionSet): hostname = String()

def can_execute(self, instance): return instance is None def get_field_value(self, instance, field_name): if field_name == 'hostname': return socket.gethostname()

gargoyle.register(HostConditionSet())


Wrap Up


DISQUSQuestions?

psst, we’re [email protected]


mailto:[email protected]

mailto:[email protected]

References

• Debug Toolbarhttps://github.com/django-debug-toolbar/django-debug-toolbar

• Devserverhttps://github.com/dcramer/django-devserver

• Werkzeughttps://github.com/mitsuhiko/werkzeug

• Gargoylehttps://github.com/disqus/gargoyle

• Sentryhttps://github.com/dcramer/django-sentry (1.x)https://github.com/dcramer/sentry (2.x)

code.disqus.com


https://github.com/disqus/gargoyle








https://github.com/dcramer/django-sentry

https://github.com/dcramer/django-sentry

https://github.com/dcramer/sentry

https://github.com/dcramer/sentry

http://disqus.com/about/

http://disqus.com/about/

tools for development and debugging in python

Technology

toolbar debug

toolbar devserverhttps

references debug toolbarhttps

ajax responses

settingsdef titleself

new happy version

old sad version

gargoyle import gargoyledef