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.
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"I also need my js function to use DOM". The javascript DOM exists in the browser (unless you're emulating it). Python runs on the server. Are you asking how you can trigger execution of browser-side javascript from python code?Levi– Levi2016-08-23 09:15:08 +00:00Commented Aug 23, 2016 at 9:15
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Yes that's it. Kode.Error404's solution seems fine.souki– souki2016-08-23 09:17:48 +00:00Commented Aug 23, 2016 at 9:17
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Possible duplicate of Call Javascript function from PythonStevoisiak– Stevoisiak2017-10-17 15:10:50 +00:00Commented Oct 17, 2017 at 15:10
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3 Answers
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
Comments
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
Comments
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
