npm i python-shell
import {PythonShell} from 'python-shell';
PythonShell.runString('x=1+1;print(x)', null, function (err) {
if (err) throw err;
console.log('finished');
});
Or you can use require like so:
let {PythonShell} = require('python-shell')
Running a Python script:
import {PythonShell} from 'python-shell';
PythonShell.run('my_script.py', null, function (err) {
if (err) throw err;
console.log('finished');
});
If the script exits with a non-zero code, an error will be thrown.
Running a Python script with arguments and options:
import {PythonShell} from 'python-shell';
let options = {
mode: 'text',
pythonPath: 'path/to/python',
pythonOptions: ['-u'], // get print results in real-time
scriptPath: 'path/to/my/scripts',
args: ['value1', 'value2', 'value3']
};
PythonShell.run('my_script.py', options, function (err, results) {
if (err) throw err;
// results is an array consisting of messages collected during execution
console.log('results: %j', results);
});
Exchanging data between Node and Python:
import {PythonShell} from 'python-shell';
let pyshell = new PythonShell('my_script.py');
// sends a message to the Python script via stdin
pyshell.send('hello');
pyshell.on('message', function (message) {
// received a message sent from the Python script (a simple "print" statement)
console.log(message);
});
// end the input stream and allow the process to exit
pyshell.end(function (err,code,signal) {
if (err) throw err;
console.log('The exit code was: ' + code);
console.log('The exit signal was: ' + signal);
console.log('finished');
});
