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promise already under evaluation: recursive default argument reference or earlier problems?
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CSS Selector that applies to elements with two classes
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edited Sep 24 '12 at 16:26
answered Sep 22 '10 at 18:07
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c# datatable insert column at position 0
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edited Nov 21 '12 at 10:24
answered Aug 27 '09 at 9:18
Wae...
How would I get a cron job to run every 30 minutes?
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Do:
0,30 * * * * your_command
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How to get last items of a list in Python?
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You can use negative integers with the slicing operator for that. Here's an example using the p...
In Vim, how do I apply a macro to a set of lines?
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To find whether a column exists in data frame or not
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Django: Set foreign key using integer?
...mployee = Employee(first_name="Name", last_name="Name")
employee.type_id = 4
employee.save()
ForeignKey fields store their value in an attribute with _id at the end, which you can access directly to avoid visiting the database.
The _id version of a ForeignKey is a particularly useful aspect of Dj...
How do I write data into CSV format as string (not file)?
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Good ways to sort a queryset? - Django
...rdered = sorted(auths, key=operator.attrgetter('last_name'))
In Django 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets/#order-by
order_by(*fields)
By default, results returned by a QuerySet are ordered by the orderin...