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Checking for empty queryset in Django
... the documentation too, for instance: docs.djangoproject.com/en/1.8/topics/http/shortcuts/#id7
– Wtower
May 22 '15 at 9:02
1
...
AngularJS: Basic example to use authentication in Single Page Application
...
I've created a github repo summing up this article basically: https://medium.com/opinionated-angularjs/techniques-for-authentication-in-angularjs-applications-7bbf0346acec
ng-login Github repo
Plunker
I'll try to explain as good as possible, hope I help some of you out there:
(1) ap...
Installing Python 3 on RHEL
...manually:
Download (there may be newer releases on Python.org):
$ wget https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tar.xz
Unzip
$ tar xf Python-3.*
$ cd Python-3.*
Prepare compilation
$ ./configure
Build
$ make
Install
$ make install
OR if you don't want to overwrite the pyth...
How do I get the result of a command in a variable in windows?
...ET command with parameter /P and direct your output to it.
For example see http://www.ss64.com/nt/set.html. Will work for CMD, not sure about .BAT files
From a comment to this post:
That link has the command "Set /P
_MyVar=<MyFilename.txt" which says it will set _MyVar to the first line
...
How to Update Multiple Array Elements in mongodb
...e to use the positional operator to update all items in an array. See JIRA http://jira.mongodb.org/browse/SERVER-1243
As a work around you can:
Update each item individually
(events.0.handled events.1.handled
...) or...
Read the document, do the edits
manually and save it replacing the
older one ...
How to work with complex numbers in C?
...table extension (e.g. IBM XL, GCC, may be intel,... ).
You can start from http://en.wikipedia.org/wiki/Complex.h - it gives a description of functions from complex.h
This manual http://pubs.opengroup.org/onlinepubs/009604499/basedefs/complex.h.html also gives some info about macros.
To declare a ...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...
cd /data/mongodbtest
3、下载mongodb的安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.8.tgz
注意linux生产环境不能安装32位的mongodb，因为32位受限于操作系统最大2G的文件限制。
#解压下载的压缩包
tar xvzf mo...
Django filter queryset __in for *every* item in list
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Relationship between SciPy and NumPy
...
From Wikipedia ( http://en.wikipedia.org/wiki/NumPy#History ):
The Numeric code was adapted to make
it more maintainable and flexible
enough to implement the novel features
of Numarray. This new project was part
of SciPy. To avoid...
Inheritance and Overriding __init__ in python
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