Call Javascript from python

Question

I am looking for a way to call a js function from a python function. I am coming to you because I also need my js function to use DOM, so pyv8 for example is not a solution.. Do you guys have any idea? Is it even possible?

Thanks in advance.

Answer 1

According to https://stackoverflow.com/a/30537286/6353933,

import js2py js = """ function escramble_758(){ var a,b,c a='+1 ' b='84-' a+='425-' b+='7450' c='9' document.write(a+c+b) } escramble_758() """.replace("document.write", "return ") result = js2py.eval_js(js) # executing JavaScript and converting the result to python string 

Advantages of Js2Py include portability and extremely easy integration with python (since basically JavaScript is being translated to python).

To install:

pip install js2py 

Answer 2

PyExecJS seems to be a good option.

>>> import execjs >>> execjs.eval("'red yellow blue'.split(' ')") ['red', 'yellow', 'blue'] >>> ctx = execjs.compile(""" ... function add(x, y) { ... return x + y; ... } ... """) >>> ctx.call("add", 1, 2) 3 

to install:

$ pip install PyExecJS 

Answer 3

PythonMonkey can be used to execute JavaScript and WebAssembly in Python.

import pythonmonkey as pm pm.eval(""" function add(x, y) { return x + y; } """) js_adder = pm.eval('add') print(js_adder(1,2)) # outputs 3.0 pm.eval('console.log("Hello from JavaScript");') # outputs: Hello from JavaScript 

Installation:

$ pip install pythonmonkey