刚开始同步系统的接触python和linux,在昊妹妹的指引下学习了使用python管理工具,希望能够通过不断熟练来学习
1.记录之前先复习以下linux下常用目录
./ 表示当前目录
~/ 表示home目录
文件夹or文件前加 . 表示隐藏文件夹or文件,ls命令无法查看隐藏文件,需要带参数-a
2.python管理包
python管理工具比较常见的有esay_install和pip,pip好像普遍认为好一点,所以我们用pip,网上找到一段比较两者的
pip was originally written to improve on easy_install in the following ways
- All packages are downloaded before installation. Partially-completed installation doesn’t occur as a result.
- Care is taken to present useful output on the console.
- The reasons for actions are kept track of. For instance, if a package is being installed, pip keeps track of why that package was required.
- Error messages should be useful.
- The code is relatively concise and cohesive, making it easier to use programmatically.
- Packages don’t have to be installed as egg archives, they can be installed flat (while keeping the egg metadata).
- Native support for other version control systems (Git, Mercurial and Bazaar)
- Uninstallation of packages.
- Simple to define fixed sets of requirements and reliably reproduce a set of packages.
sudo apt-get install python-pip
安装好了pip则可以使用了,但是默认的pypi源在国内速度太慢,可以导入清华的pypi源,或者v2ex的源。然后修改or添加配置文件: ~/.pip/pip.conf
把内容变为:
[global] index-url = http://pypi.v2ex.com/simple/ timeout = 6000
然后pip的常用命令
pip help pip install [name] pip install ‘[name[==version]]‘ pip install -U [name] pip uninstall [name] pip freeze pip search [keyword] pip show [name]
3. 建立python虚拟环境
virtualenv可以用于提供纯净的python环境,相互独立、没有依赖关系,这可以解决库的版本、依赖和权限的问题。需要删除应用时可以直接将该环境和应用的文件夹删除即可。virtualenv可以理解为python环境的虚拟机。详细介绍请猛戳这儿
virtualenv的安装很简单,直接使用pip安装即可:
pip install virtualenv
进入目录,并建立虚拟环境:
cd pythonenv virtualenv pythonenv
激活虚拟环境:
cd pythonenv sourve bin/activate cd ..
好了,已经进入了pythonenv的虚拟环境了,应该还会有(pythonenv)的标识。
4.从github上下载python开源包
时间: 2024-10-15 03:52:54