Скачать или смотреть execute python script from node js without any external library

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you can execute a python script from a node.js application without using any external libraries by leveraging the built-in `child_process` module that comes with node.js. this module allows you to spawn child processes and communicate with them.

here’s a step-by-step tutorial on how to do this:

step 1: create a python script

first, create a simple python script that you want to execute. for example, let's create a file named `script.py` with the following content:



step 2: create a node.js script

next, create a node.js script that will call the python script. let's create a file named `app.js` with the following content:



step 3: run the node.js script

make sure you have both `script.py` and `app.js` in the same directory. then, you can run the node.js script from the terminal:



step 4: observe the output

when you run the node.js script, it will execute the python script, passing the arguments `1`, `2`, and `3`. the output you should see in the terminal will be something like:



notes

1. **python path**: if your python installation is not available in the system's path, you may need to provide the absolute path to the python executable in the `spawn` method. for example, replace `'python'` with the full path like `'/usr/bin/python3'` or `'/usr/local/bin/python3'`.

2. **error handling**: always handle possible errors from the python script by listening to `stderr` as shown in the example.

3. **cross-platform compatibility**: if you want to ensure compatibility across different operating systems, you may need to handle cases specifically for windows (e.g., using `python.exe`).

4. **node.js version**: ensure you are using a version of node.js that supports es6 features, as the example uses arrow functions and template literals.

that's it! you now have a simple setup for executing a python script from node.js without any external libraries.

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#NodeJS #PythonScript #windows
execute python script
node js
without external library
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command line
inter-process communication
asynchronous execution
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standard input
standard output
error handling
file system
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