如何根据需要从python脚本自动安装所需的软件包? [英] How to automatically install required packages from a python script as necessary?

问题描述

在python或linux中是否存在任何基本指示系统安装必要的东西"的东西.基本上，我发现为我工作的每个新脚本/系统/服务器安装python软件包很烦人.无论如何，每次我最终做一个sudo pip或apt-get或dnf时.为什么不在脚本本身中自动执行该操作呢?每当出现找不到软件包"错误时，请将库名称传递给install语句.这是那里吗?

Is there anything in python or linux what basically instructs the system to "install whatever is necessary". Basically I find it annoying to install python packages for each new script/system/server that I work on. Each time I end up doing a sudo pip or an apt-get or dnf anyway. Why not automate that within the script itself. Whereever a 'no package found' error crops up, pass the library name to the install statement. Is this there ?

PS:我知道docker存在，但出于纯粹的执行目的，我是在python/script级别或直接系统级别进行交谈.

PS: I know docker exists, but am talking at a python/script level or a direct system level for purely execution purposes.

谢谢

推荐答案

我知道的最好方法是，创建一个文件requirements.txt列出其中的所有软件包名称，并使用 pip 安装它

The best way I know is, create a file requirements.txt list out all the packages name in it and install it using pip

pip install -r requirements.txt

示例requirements.txt:

BeautifulSoup==3.2.0
Django==1.3
Fabric==1.2.0
Jinja2==2.5.5
PyYAML==3.09
Pygments==1.4
SQLAlchemy==0.7.1
South==0.7.3
amqplib==0.6.1
anyjson==0.3
...

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