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Adding a user to a group in django
...Group model with the name of the group, then add the user to the user_set
from django.contrib.auth.models import Group
my_group = Group.objects.get(name='my_group_name')
my_group.user_set.add(your_user)
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Overriding class constants vs properties
...at instance-level code executing in class One was retrieving static values from class Two. self::TEST would have returned "test1" where static::TEST returns the expected "test2" - Hope that helps, thanks for replying!
– David Farrell
Jun 26 '14 at 1:45
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How to move screen without moving cursor in Vim?
...' combination. Second, configure vimundo to your liking so you can recover from an oops. (Non-portable hacks incoming:) Third, do the same but from your user keyboard config, e.g. Windows key + Z; for maps to sequences, try xdotool or triggerhappy. Finally, display your caps lock state (can't be don...
How do I redirect output to a variable in shell? [duplicate]
...ot affect variables in the parent process. I am trying to split the output from a process using tee and "reconnect" the tee-divided processes later, by reading the output of one as an argument in the other.
– user001
Aug 11 '14 at 0:02
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Algorithm to find Largest prime factor of a number
...ly stores the number itself. Each iteration, you remove the highest number from the queue, and attempt to split it into two factors (not allowing 1 to be one of those factors, of course). If this step fails, the number is prime and you have your answer! Otherwise you add the two factors into the que...
Finding the index of an item in a list
... itertools.count() (which is pretty much the same approach as enumerate):
from itertools import izip as zip, count # izip for maximum efficiency
[i for i, j in zip(count(), ['foo', 'bar', 'baz']) if j == 'bar']
This is more efficient for larger lists than using enumerate():
$ python -m timeit -s...
Create a GUID in Java
...ID initialized to a specific value you can use the UUID constructor or the fromString method.
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Creating an R dataframe row-by-row
...each world. Snapshot based file systems are a good example (which evolved from concepts such as union mounts, which also ply both sides).
If R Core wanted to do this, underlying vector storage could function like a union mount. One reference to the vector storage might be valid for subscripts 1...
Python Image Library fails with message “decoder JPEG not available” - PIL
...pillow:
pip install --no-cache-dir -I pillow
(Edits to include feedback from comments. Thanks Charles Offenbacher for pointing out this differs for 32bit, and t-mart for suggesting use of --no-cache-dir).
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Difference between jQTouch and jQuery mobile
...ile is presented as a framework
jQTouch is focused on small screen device, from their blog :
Apps developed with jQTouch will certainly run fine on iPads and other tablet devices, but we aren’t going to automagically convert to a more tablet-friendly UI that takes advantage of the additional ...