ubuntu12.04安装eclipse4.3添加PyDev提示Unable to read repository

环境：

ubuntu12.04.2_64bit

jdk1.7.0

1. 下载并配置jdk

2. 下载 Eclipse Standard 4.3 for Linux 64 bit

http://www.eclipse.org/downloads/download.php?file=/technology/epp/downloads/release/kepler/R/eclipse-standard-kepler-R-linux-gtk-x86_64.tar.gz

3. 下载后解压

tar -zxvf eclipse-standard-kepler-R-linux-gtk-x86_64.tar.gz

cd eclipse

./eclipse

便可运行elipse

4. 安装python3

sudo apt-get install python3 -y

5. 安装PyDev，这里有官方的教程，很简单

http://pydev.org/manual_101_install.html

安装步骤到这的时候

提示

Unable to read repository at http://pydev.org/updates/content.xml.

Unable to read repository at http://pydev.org/updates/content.xml.

Host name may not be null

网上查了一下，发现是伟大的墙在捣乱！

看了下这个http://stackoverflow.com/questions/5714994/unable-to-load-the-repositorypydev-for-eclipse，发现matze999提到一个解决办法，就是让eclipse走代理，具体方法以下：

http://www.mkyong.com/web-development/how-to-configure-proxy-settings-in-eclipse/