Django

Every Django model class and every instance of every Django model class has an attribute on it named _meta

Django cheat sheet

Django is a web framework written in Python. Pyjamas is a Python port of the google web toolkit (written in Java). Pyjamas can be used with Django to create web applications.

Big list of Django tips

Writing managers is really simple, and they provide a better user interface to your code. This code snippet simply adds a latest() method to the default objects manager class ForecastDayManager(Manager): def __init__(self, *args, **kwargs): super(ForecastDayManager, self).__init__(*args, **kwargs) def latest(self): return self.get_query_set().order_by('forecast_date')[0] It can be called ForecastDay.objects.latest(). This is a trivial example, but there is a lot of power that lies in this functionality.

Set DJANGO_SETTINGS_MODULE before you run

export DJANGO_SETTINGS_MODULE=yoursite.settings

# Cron jobs for foo.com run at 3AM DJANGO_SETTINGS_MODULE=foo.settings 0 3 * * * python /path/to/maintenance/script.py 30 3 * * * python /path/to/other/script.py # Cron jobs for bar.com run at 4AM DJANGO_SETTINGS_MODULE=bar.settings 0 4 * * * python /path/to/maintenance/script.py 30 4 * * * python /path/to/other/script.py