v0.4.0

PythonMonkey v0.4.0

• fixed a bug where methods called on proxied JS objects would use globalThis for the value of this
• implemented proxying of arbitrary python objects in JavaScript, like so:

import pythonmonkey as pm

class Counter:
  def __init__(self):
    self.count = 0
  def increment(self):
    self.count = self.count + 1

counter = Counter()

pm.eval("""
(pyObject) => {
  console.log(pyObject.count); // 0
  pyObject.increment();
  console.log(pyObject.count); // 1
}
""")(counter)

• implemented a new type called JSMethodProxy, which can be used to implement methods on python objects in JavaScript, like so:

import pythonmonkey as pm

jsFunc = pm.eval("(function() { this.count++; })")

class Counter:
  def __init__(self):
    self.count = 0
    self.increment = pm.JSMethodProxy(jsFunc, self)

counter = Counter()
print(counter.count) # 0
counter.increment()
print(counter.count) # 1

• various garbage collection optimizations
• various memory leak fixes
• implemented complete cross-language stack traces
• pm.eval can now accept a file object as its first argument (such as an object returned by the open() python built-in), which is expected to be a javascript file
• when calling pm.require (or other requires created by pm.createRequire), .py CommonJS modules now have precedence over .js modules when there is a namespace collision
• setTimeout now returns a Node.js-style Timeout class for the timeout id, with .ref() and .unref() methods
• implemented XMLHttpRequest.withCredentials
• implemented "json" support for XMLHttpRequest.responseType
• implemented remaining standard console methods

v0.3.0

Our JS Proxies now implement all Array and Object methods on Python Lists and Dicts, and our Python List and Dict subtypes implements operators and methods on JS Arrays and Objects.

One can now do

items = [1, 2, 3, 4, 5]
result = [None]
pm.eval("(result, arr) => {result[0] = arr.some((element) => element % 2 === 0)}")(result, items)
-> result[0] == True

and going the other way

a = pm.eval("([1,2,3,4,5,6])")
b = a[1:5]
-> b == [2,3,4,5]   

We also have all the iterators returned by such methods as values() now working without making copies of the object being iterated upon

v0.2.3

This release adds a new type, JSArrayProxy, a subtype of list, to properly proxy JavaScript Arrays as python lists, including having all of the appropriate methods.

This release also adds new methods to JSObjectProxy to more closely match dict. It now has all the same methods as dict except for the following: keys(), items(), update(), and values(). These will be added soon in a future release.

v0.2.2

This release includes implementations for URLSearchParams, XMLHttpRequest, atob, btoa, setTimeout, and clearTimeout. It also adds python 3.12 compatibility, better stringification for cross-language objects, and adds an event loop to pmjs. Finally, it fixes a bug preventing some users from installing pythonmonkey from source distributions.

Debugger

This release includes a debugger for debugging JS code in pythonmonkey. It also exposes the new and typeof operators from Javascript as functions, as well all of the standard built-in objects.

First release!

Our first public release.

Check out here to see how to install and use the library, or here if you would like to compile a local version and/or contribute to the project!

Basic examples can be found in the /examples directory.
More advanced examples can be found in the dedicated repository https://github.com/Distributive-Network/PythonMonkey-examples
Example of a fullstack AES encryption and decryption app that uses the crypto-js NPM package can be found at https://github.com/Distributive-Network/PythonMonkey-Crypto-JS-Fullstack-Example

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