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Django database query: How to get object by id?
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186
If you want to get an object, using get() is more straightforward:
obj = Class.objects.get(pk...
Multiple ModelAdmins/views for same model in Django admin
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281
I've found one way to achieve what I want, by using proxy models to get around the fact that eac...
Grepping a huge file (80GB) any way to speed it up?
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153
Here are a few options:
1) Prefix your grep command with LC_ALL=C to use the C locale instead...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
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191
There's a striking difference here.
valueOf is returning an Integer object, which may have it...
error: Libtool library used but 'LIBTOOL' is undefined
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143
A good answer for me was to install libtool:
sudo apt-get install libtool
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What is the _references.js used for?
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In VS 11, Visual Studio will give you intellisense from all files
that have references in the “_references.js” file.
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How to exclude a file extension from IntelliJ IDEA search?
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187
In intellij 16 there is a section "File name Filter" to exclude an extension use !*.java. You ...
How can I remove a key and its value from an associative array?
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381
You can use unset:
unset($array['key-here']);
Example:
$array = array("key1" => "value1",...
How do you extract a column from a multi-dimensional array?
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>>> import numpy as np
>>> A = np.array([[1,2,3,4],[5,6,7,8]])
>>> A
array([[1, 2, 3, 4],
[5, 6, 7, 8]])
>>> A[:,2] # returns the third columm
array([3, 7])
See also: "numpy.arange" and "reshape" to allocate memory
Example: (Allocating a ar...