PyEvalJS
PyEvalJS is a python wrapper for Microsoft Chakra engine, it act as a bridge between the Python and JavaScript objects, and with this module you can easily run JavaScript Code in Python without having to install nodejs.
Installation
pip install PyEvalJS
Usage
Execute a script
>>> from PyEvalJS import Runtime
>>> runtime = Runtime()
>>> runtime.eval("'red yellow blue'.split(' ')")
['red', 'yellow', 'blue']Call a function
>>> from PyEvalJS import Runtime
>>> runtime = Runtime()
>>> runtime.compile("""
... function add(x, y) {
... return x + y;
... }
... """)
>>> runtime.call("add",1,2)
3or just put args into the script
>>> from PyEvalJS import Runtime
>>> runtime = Runtime()
>>> runtime.eval("""
... function add2(num) {
... return num+2;
... } add2(8);""")
10or by passing parameters
>>> from PyEvalJS import Runtime
>>> runtime = Runtime()
>>> runtime.set_variable("a",8)
True
>>> runtime.eval("""
... function add2(num) {
... return num+2;
... } add2(a);""")
10Passing parameters
>>> from PyEvalJS import Runtime
>>> runtime = Runtime()
>>> runtime.set_variable("name", ['Jim','Bob','Tour'])
True
>>> runtime.get_variable("name")
['Jim', 'Bob', 'Tour']Use a JavaScript module
>>> from PyEvalJS import Runtime
>>> runtime = Runtime()
>>> runtime.require("./js/crypto-js.js") #import CryptoJS
>>> runtime.compile("""
... function encryptByDESModeCBC(key,message) {
... var keyHex = CryptoJS.enc.Utf8.parse(key);
... var ivHex = CryptoJS.enc.Utf8.parse(key);
... encrypted = CryptoJS.DES.encrypt(message, keyHex, {
... iv:ivHex,
... mode: CryptoJS.mode.CBC,
... padding:CryptoJS.pad.Pkcs7
... }
... );
... return encrypted.ciphertext.toString();
... }""")
>>> runtime.call("encryptByDESModeCBC",'1234','this is a test')
'94b7b0cc2b71165ea067868f595fc03a'Call the same function for each item in the list
>>> from PyEvalJS import Runtime
>>> runtime = Runtime()
>>> runtime.compile("""
... function add2(num) {
... return num+2;
... }""")
>>> runtime.call_for_each("add2",[1,2,4,6,5])
[3, 4, 6, 8, 7]
Supports
- Python2 >= 2.7
- Python3 >= 3.4
Platform
- macOS x64
- Linux x64
- Windows x86/x64 (tested on Windows 10 x64, Python 3.7)
Contributing
- Fork it!
- Create your feature branch:
git checkout -b my-new-feature - Commit your changes:
git commit -am 'Add some feature' - Push to the branch:
git push origin my-new-feature - Submit a pull request :D
Licence
Code released under the MIT license
