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How to prompt for user input and read command-line arguments [closed]
...odules for parsing command line options: optparse (deprecated since Python 2.7, use argparse instead) and getopt. If you just want to input files to your script, behold the power of fileinput.
The Python library reference is your friend.
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libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术
...机 libev API 并以不同方式输出时间。
对于 libevent，使用版本 1.4.3，而对于 libev，使用版本 3.31。库和测试程序均由带有优化选项的 gcc 4.2.3 版编译，-O3 -fno-guess-branch-probability -g并在带有 Debian GNU/Linux（Linux 版本 2.6.24-1）的 3.6GHz Cor...
How do I read from parameters.yml in a controller in symfony2?
...his->get() method in a controller will load a service (doc)
In Symfony 2.7 and newer versions, to get a parameter in a controller you can use the following:
$this->getParameter('api_user');
share
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Truncating floats in Python
...ion('.')
return '.'.join([i, (d+'0'*n)[:n]])
This is valid in Python 2.7 and 3.1+. For older versions, it's not possible to get the same "intelligent rounding" effect (at least, not without a lot of complicated code), but rounding to 12 decimal places before truncation will work much of the ti...
How to use PyCharm to debug Scrapy projects
I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
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Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...后根据规则，加载对应的脚本，方便修改和管理，还支持版本和调试等功能。中文帮助在这儿：http://support.google.com/tagmanager/?hl=zh-Hans，国外的话，之前也有很多类似的商业产品。
在正式使用Tag Manager之前，我们先看看没有这个...
NuGet auto package restore does not work with MSBuild
...ch to Package Restore within Visual Studio, and it was introduced in NuGet 2.7.
Beginning with NuGet 2.7, the NuGet Visual Studio extension integrates into Visual Studio's build events and restores missing packages when a build begins. This feature is enabled by default, but developers can opt out...
Efficient way to remove keys with empty strings from a dict
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Python 2.X
dict((k, v) for k, v in metadata.iteritems() if v)
Python 2.7 - 3.X
{k: v for k, v in metadata.items() if v is not None}
Note that all of your keys have values. It's just that some of those values are the empty string. There's no such thing as a key in a dict without a value; i...
Mac升级10.14版本，深度休眠后VNC登陆界面卡住的问题 - 操作系统(内核) - ...
Mac升级10.14版本，深度休眠后VNC登陆界面卡住的问题ssh登陆mac机器，查看login相关进程：ps -elf | grep login一般有4个进程，除了logind及console，其他2个进程使用sudo kill -9杀掉，即可恢复正常登陆。ssh登陆mac机器，查看login相关进程：
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OAuth那些事儿 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，被称为三条腿的OAuth（3-Legged OAuth），这也是OAuth的标准版本。这里所谓的“三条腿”，指的是授权过程中涉及三步流程。不过有些情况下，不需要用户的参与，此时就产生了一个变体，被称作两条腿的OAuth（2-Legged OAuth），两...