是否可以使用 python-shell 包在 Node JS 中安装 python 包? [英] Is it possible to install python packages in Node JS using python-shell package?

问题描述

我刚刚知道我们可以使用下面的 npm 包在 Node JS 中运行 Python 脚本.

I just came to know that we can run Python scripts in Node JS using the below npm package.

python-shell

是否可以使用相同的库安装 python 包?类似于 pip install package

Is it possible to install python packages using the same library? Something like pip install package

我需要导入一些库来处理 Python 脚本.

I need to import a few libraries to work with the Python scripts.

如果使用此包无法实现，还有其他方法可以实现吗?

If it is not possible with this package, is there any other way to achieve it?

推荐答案

这是第一个文件:test.js

let {PythonShell} = require('python-shell');
var package_name = 'pytube'
let options = {
    args : [package_name]
}
PythonShell.run('./install_package.py', options, 
    function(err, results)
    {
        if (err) throw err;
        else console.log(results);
    })

此文件运行另一个文件 install_package.py，并通过命令行为该文件提供参数.
您可以使用诸如 document.getElementById().value() 之类的东西从 HTML 中获取包名称
这是第二个文件:install_package.py

This file runs another file install_package.py with arguments given to that file through command line.
You can get the package name from your HTML by using something like document.getElementById().value()
Here's the second file:install_package.py

import os
import sys
os.system('python3 -m pip install {}'.format(sys.argv[1]))

安装任何传递给它的包名.
由于包 pytube 已经为我安装，输出是:

This install whatever package name was passed to it.
As package pytube is already installed for me the output is:

rahul@RNA-HP:~$ node test.js
[ 'Requirement already satisfied: pytube in ./.local/lib/python3.7/site-packages (9.5.0)' ]

同样可以使用 subprocess 而不是 os 来完成:

Same can be done using subprocess instead of os:

import subprocess
import sys
process = subprocess.Popen(['python3', '-m', 'pip', 'install', sys.argv[1]], stdout = subprocess.PIPE)
output, error = process.communicate()
output = output.decode("utf-8").split('\n')
print(output)

使用subprocess输出:

rahul@RNA-HP:~$ node test.js
[ "['Requirement already satisfied: pytube in ./.local/lib/python3.7/site-packages (9.5.0)', '']" ]

希望这会有所帮助.
如果有什么可以改进的，请评论.

Hope this helps.
Comment if anything can be improved.

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