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bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need
The above outputs on my Terminal. I am on Mac OS 10.7.x. I have Python 2.7.1, and followed this tutorial to get Beautiful Soup and lxml, which both installed successfully and work with a separate test file located here . In the Python script that causes this error, I have included this line:
...
MVC演化史 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...b MVC？这是因为截获请求的是Controller而不是View。
花絮：Python社区的Django框架宣称自己使用的是MTV，其实质仍然是Web MVC。
Web MVP
在Desktop的时代，微软通过WinForms实现MVP，把组件化编程发挥到了极致，大大提升了开发效率，随着...
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...探测点，并且可以添加搜索项。
探针是用于捕获事件数据的检测点。
提供的搜索词支持通配符如*/?
"bpftrace -l" 也可以通过管道传递给grep，进行完整的正则表达式搜索。
2. Hello World
# bpftrace -e 'BEGIN { printf("hello world\n"); }...
解决python3报错：TypeError: a bytes-like object is required, not \'str...
解决python3报错：TypeError: a bytes-like object is required, not 'str'问题原因：python3和Python2在套接字返回值解码上有区别，也就是说报错的这段代码在python2上可以正常使用。解决思路：python bytes和str两种类型可以通过函数encode()和decode() ...
What is a mixin, and why are they useful?
In " Programming Python ", Mark Lutz mentions "mixins". I'm from a C/C++/C# background and I have not heard the term before. What is a mixin?
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Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...话），仅仅在自己写一些框架和注解框架时会用到，所以对api总是不熟悉。每次用到api都要去网上查，查了后又得自己实验下，很不爽。更差劲的是这样写法可读性十分低下。我不希望这样写反射，我希望反射能像：
String str ...
urllib2.HTTPError: HTTP Error 403: Forbidden
I am trying to automate download of historic stock data using python. The URL I am trying to open responds with a CSV file, but I am unable to open using urllib2. I have tried changing user agent as specified in few questions earlier, I even tried to accept response cookies, with no luck. Can you pl...
Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...了远程目录映射到本地虚拟磁盘的功能。远程服务端是用Python...因工作需要，最近与同事合作使用Dokan开发了一个虚拟磁盘的简单程序，初步实现了远程目录映射到本地虚拟磁盘的功能。
远程服务端是用Python写的，主要是将远...
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
...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 client替代。该参数向后兼容
srvtimeout 3000
# 设置服务器端回应客户度数据发送的最长等待...
How to display a specific user's commits in svn log?
...me too. Like vi, on Unix/Linux distros sed is perhaps more ubiquitous than Python - and therefore no need to worry about installation.
– therobyouknow
Jul 20 '12 at 15:32
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