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Difference between static STATIC_URL and STATIC_ROOT on Django
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I see. I was trying to find a bug that caused most of my templates to load my stylesheet except one page. I changed it over to static method instead of STATIC_URL method, and the bug was gone. Good call on the suggestions based on versions.
– User
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How to override and extend basic Django admin templates?
...sue about a year and a half ago and I found a nice template loader on djangosnippets.org that makes this easy. It allows you to extend a template in a specific app, giving you the ability to create your own admin/index.html that extends the admin/index.html template from the admin app. Like this:
{%...
Signal handling with multiple threads in Linux
In Linux, what happens when a program (that possibly has multiple threads) receives a signal, like SIGTERM or SIGHUP?
2 Ans...
Why is using 'eval' a bad practice?
...s, using eval is a bad practice. Just to name a few reasons:
There is almost always a better way to do it
Very dangerous and insecure
Makes debugging difficult
Slow
In your case you can use setattr instead:
class Song:
"""The class to store the details of each song"""
attsToStore=('Name...
On localhost, how do I pick a free port number?
... bind to a specific port, or bind to port 0, e.g. sock.bind(('', 0)). The OS will then pick an available port for you. You can get the port that was chosen using sock.getsockname()[1], and pass it on to the slaves so that they can connect back.
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与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处...
...ndl;
return 0;
}
这里因为可以由三法则(Rule of Three)即一个类如果需要析构函数，则该类几乎也必然需要定义自己的复制构造函数和赋值操作符解释。重新运行程序，即可得到正确结果并避免堆损坏错误。
复制构造函数 堆损...
Pass all variables from one shell script to another?
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MESSAGE="hello"
export MESSAGE
./b.py
b.py:
#!/usr/bin/python
import os
print 'The message is:', os.environ['MESSAGE']
Sourcing:
Instead we could source like this:
a.sh:
#!/bin/sh
MESSAGE="hello"
. ./b.sh
b.sh:
#!/bin/sh
echo "The message is: $MESSAGE"
Then:
$ ./a.sh
The message...
CSS customized scroll bar in div
...wser compatibility.
Scroll Bar CSS Support
Currently, there exists no cross-browser scroll bar CSS styling definitions. The W3C article I mention at the end has the following statement and was recently updated (10 Oct 2014):
Some browsers (IE, Konqueror) support the non-standard properties 's...
View's getWidth() and getHeight() returns 0
...o you need a workaround for waiting for this phase. There a are different possible solutions to this:
1. Listen to Draw/Layout Events: ViewTreeObserver
A ViewTreeObserver gets fired for different drawing events. Usually the OnGlobalLayoutListener is what you want for getting the measurement, so the ...
What killed my process and why?
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That's almost definitely it. I saw this a lot when TAing. Many students would forget to free their objects, and the apps would eventually reach 3GB of virtual memory usage. As soon as it hit that point it was killed.
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