环境配置:Ubuntu开发环境配置

安装tree

tree命令用来以列表的形式展示目录层次。Ubuntu下安装tree可以通过下面命令:

sudo apt-get install tree

关于tree命令的使用,可以参阅在线文档,最常见的命令可能如下:

[email protected]~/python/web $ tree weblog -L 2
weblog
├── bin
│   ├── activate
│   ├── activate.csh
│   ├── activate.fish
│   ├── activate_this.py
│   ├── easy_install
│   ├── easy_install-2.7
│   ├── pip
│   ├── pip2
│   ├── pip2.7
│   ├── python
│   ├── python2 -> python
│   └── python2.7 -> python
├── include
│   └── python2.7 -> /usr/include/python2.7
├── lib
│   └── python2.7
└── local
    ├── bin -> /home/willard/python/web/weblog/bin
    ├── include -> /home/willard/python/web/weblog/include
    └── lib -> /home/willard/python/web/weblog/lib

上面L表示遍历层数,“2”表示树有两层。此外,这里也有关于tree的一些说明,楼梯

安装pip和virtualenv

pip是python的包管理工具,有建议说Python的包都用pip进行管理,virtualenv是 Python 多版本管理的利器,不同版本的开发调试全靠它,可以通过下面命令安装pip和virtualenv。

## 安装pip
sudo apt-get install python-pip
## 安装virtualenv
sudo apt-get install virtualenv

安装git

git是目前最主流的版本控制管理工具,可以通过下面命令安装:

sudo apt-get install git

关于git的使用,在Ubuntu下git使用教程中有详细介绍。

安装SimpleCV

SimpleCV是一个计算机视觉库,目前在github上很活跃。根据文档说明,可以通过下面命令安装该库:

sudo apt-get install ipython python-opencv python-scipy python-numpy python-pygame python-setuptools git
git clone https://github.com/sightmachine/SimpleCV.git
cd SimpleCV/
sudo pip install -r requirements.txt
sudo python setup.py install

上面第一条命令安装Python第三方模块,包括ipython,opencv,scipy,numpy,pygame,setuptools和git,第二条命令从远程仓库克隆rep,然后安装依赖关系,打开看了一下requirements.txt要安装的依赖关系:

numpy
scipy
PIL
ipython
svgwrite
pygame==1.9.1release

在运行第三条命令的时候,出现下面错误:

[email protected]~/python/cv/SimpleCV $ sudo pip install -r requirements.txt
Requirement already satisfied (use --upgrade to upgrade): numpy in /usr/lib/python2.7/dist-packages (from -r requirements.txt (line 1))
Requirement already satisfied (use --upgrade to upgrade): scipy in /usr/lib/python2.7/dist-packages (from -r requirements.txt (line 2))
Downloading/unpacking PIL (from -r requirements.txt (line 3))
  Could not find any downloads that satisfy the requirement PIL (from -r requirements.txt (line 3))
  Some externally hosted files were ignored (use --allow-external PIL to allow).
Cleaning up...
No distributions at all found for PIL (from -r requirements.txt (line 3))
Storing debug log for failure in /home/willard/.pip/pip.log

暂时还不知道是什么原因,先到这里,睡觉了。

2014/04/08 更新

没想到昨天在SimpleCV Rep开了个issue很快得到了回答,本小子将问题反馈过去,@sksavant给出的回答是:

Use ‘pip install -r requirements.txt –allow-all-external –allow-unverified PIL’

本小子试了一下,发觉还是不行,然后按照给出的错误提示,运行sudo pip install -r requirements.txt --allow-unverified PIL,安装成功。

Reference:

1:在Ubuntu下配置舒服的Python开发环境

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