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Create a dictionary with list comprehension
...y: value for (key, value) in iterable}
Note: this is for Python 3.x (and 2.7 upwards). Formerly in Python 2.6 and earlier, the dict built-in could receive an iterable of key/value pairs, so you can pass it a list comprehension or generator expression. For example:
dict((key, func(key)) for key in ...
python location on mac osx
...its" or "license" for more information.
>>>
# python.org Python 2.7.2 (also built with newer gcc)
$ /usr/local/bin/python
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for m...
How to install 2 Anacondas (Python 2 and 3) on Mac OS
...eparated environments. The easiest way to create an environment for Python 2.7 is to do
conda create -n python2 python=2.7 anaconda
This will create an environment named python2 that contains the Python 2.7 version of Anaconda. You can activate this environment with
source activate python2
Th...
VSS使用指南 - 开源 & Github - 清泛网 - 专注IT技能提升
VSS使用指南VSS 指南概述VSS是一个版本控制工具。其操作比较简单，使用方便，又能达到公司的需求，所以VSS在我们公司得到了很好的应用。VSS具体的操作方法请参...概述
VSS是一个版本控制工具。其操作比较简单，使用方便，又...
linux svn搭建配置及svn命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
linux svn搭建配置及svn命令详解SVN是一种版本管理系统，前身是CVS，是开源软件的基石。即使在沟通充分的情况下，多人维护同一份源代码的一定也会出现混乱的情况，版本管理...SVN是一种版本管理系统，前身是CVS，是开源软件的...
How do you test that a Python function throws an exception?
...
Since Python 2.7 you can use context manager to get ahold of the actual Exception object thrown:
import unittest
def broken_function():
raise Exception('This is broken')
class MyTestCase(unittest.TestCase):
def test(self):
...
HAproxy - Web负载均衡解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...连接到一台服务器的最长等待时间，默认单位是毫秒，新版本的haproxy使用timeout connect替代，该参数向后兼容
clitimeout 3000
# 设置连接客户端发送数据时的成功连接最长等待时间，默认单位是毫秒，新版本haproxy使用timeout cli...
深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... ISR 能正常工作了，我提供了完整的示例源码和磁盘映像下载：interrupt_demo
2. 保护模式下的中断机制
引入保护模式后，情形变得复杂多了，实施了权限控制机制，为了支持权限的控制增添了几个重要的数据结构，下面是与中...
App Inventor 2 扩展 · App Inventor 2 中文网
...t in an app. Open your browser to an App Inventor server. You could use ai2.appinventor.mit.edu, or you could use a server you’ve built on your local machine.
Start a new project. In the designer palette open the Extension drawer and click import extension. Choose the aix file you built just...
filter items in a python dictionary where keys contain a specific string
...natory, as it reads like English pretty well.
This syntax requires Python 2.7 or greater.
In Python 3, there is only dict.items(), not iteritems() so you would use:
filtered_dict = {k:v for (k,v) in d.items() if filter_string in k}
...