I've made a program in Python 2.7 with a wxWidgets GUI. Now, I want to improve it by making a web GUI, make it multi-platform and port it in Python 3.4. For this purpose, I have to make Javascript and Python communicate (i.e : I want my Python to react on some event on the page and I want my page to react on some Python actions).
I don't really know how to do it, and I don't even know if it's possible.
I've find some libraries, but some are just for Python 2 (pyjamas), and some don't provide what I search, or I don't search enough ^^ (web2py, turbogear, cherrypy).
I would like to find a complete library that ease this communication, and that is rather known and supported, with a compete documentation.
Maybe, there are other ways to do such a web GUI, but I don't find them.
Thanks !
I guess what you want is a single page application.
I would suggest to wrap your python code in a RESTful Api using a python web framework like Flask. This would isolate your python code from the presentation layer.
You could then write the UI in html and javascript and use AJAX to call your python api from javascript.
Related
I wrote a data processing program in python. My program takes some input data and transforms it using python libraries such as PYTHON-MIP, Numpy, Scipy, Pandas, etc. I want to build a graphical interface for this program and I would like it to be web to display graphs with libraries like Chart JS. I know how to build this app by separating the frontend and the backend. But I would like the processing to run on the client. That is, I want an application without a backend. I don't know what options I have.
The browser (the "client") is not able to run python code. It will have to run on the server side.
With web assembly is possible execute python in the client. The best option is pyodide, that able the numpy, scipy, scikitlearn, pandas, etc. Pyodide
I'm creating a video game that has single player and multiplayer. The single player is done in C# (Unity), and want to use Gamesparks BaaS that works on Javascript (NodeJS) for their server code.
Since I want the multiplayer server to be authoritative, I need the server code to run Javascript and the client will run C#, which means duplicated code
But, if I can create .NET dlls in Javascript I can reduce code duplication heavily by using those libraries in Unity and using the Javascript code on the server.
Thanks!
If you want to use javascript (and by javascript I mean nodejs), along with c# and communicate between those two, you can use electron-edge. It helps you to run c# code using nodejs through Electron API.
Here is the link of their Github url: Electron-Edge-documentation
You can also interact with dlls, using an creating your application as an electron app. You refer this question where you will find some more details regarding it.
I want to convert some web pages with javascript to plain html, and I found there several ways(pls tell me if I'm wrong):
Use Jython, an example: http://blog.databigbang.com/web-scraping-ajax-and-javascript-sites/
Use Java together with htmlunit
Use a proxy, an example: http://grep.codeconsult.ch/2007/02/24/crowbar-scrape-javascript-generated-pages-via-gecko-and-rest/
Use python together with qt or PyV8
Because I want to make a tiny tool to meet my request, and I thought it somewhat complicated to install V8 and qt, although python is my first choice.
So I tried to make a proxy with gecko, but it seems need a DISPLAY which I can not afford in a remote Linux server.
Now I am trying to use jython, but it seems there is no simple way to just convert a whole page to plain html.
Actually, I want to ask is there a way to convert a web page contains javascript to plain html, just like the brower does. Can node.js do this job?
I've recently built a server on top of PhantomJS that does this. I highly recommend this route.
http://phantomjs.org/
Basically, you write a quick script that has PhantomJS run the page, and configure a trigger method that lets you know the page is finished and sends the data off. My version used the built-in HTTP server, so PhantomJS easily served up the results on its own. This takes about 15 lines of code to do. (Sorry, can't paste it here... wrote it on work time. But, check out the example on their home page. It's almost complete!)
I am trying to develop a way for Python to build web applications. Using just one HTML file and a python file, the user should be able to develop a small web application. The connection between Python logic/events and HTML can be javascript, and wanted to use something that made life easier than passing a DOM object back and forth.
I found Backbone.js, and thought that this may be something to look into. Any ideas?
I was thinking that Python could create events in javascript structured by Backbone, and then the javascript could talk back and forth with server/client very easily.
Would this work? Or the use of a DOM object with all of the HTML id's and attributes is necessary to use?
Here is how we create the webApp:
At the client side, using HTML5+Javascript and backbonejs
At the server side, using Django and its REST plugin
REST API is used between the client and the server
[Client/HTML5+Javascript + Backbone] ← REST → [Web-Server]—[Django/rest-plugin]
There are a few rest frameworks for Django.
django-rest-framework
tastypieapi
django-piston
Alternative to Django
flask
Also you can see the post in here as well.
Good luck!
Here is my problem:
Customer wants my current web application as a Desktop, possibly Executable but without browser for the Client part.
I looked into 3 of following :
Qooxdoo - Needs browser
Adobe Air - Needs plugin and Runtime
Appcelerator - Most interesting , builds into Native Client
Here are the main questions:
Client side:
What i have read on appcelerator is it builds things written in html and javascript
into native executable, so what i have already written (HTML + Jquery + Jquery UI + CSS) can be built into Native Windows / Linux / IOS executables without changes to current code ?
Server side:
No problem as it returms html and json and decided to keep running on server. But wondering how offline contents work.
I'm not sure this will actually work. From what I understand, titanium appcelerator provides a framework primarily for you to create applications on the iOS and Android platforms. I did see some things about the Desktop apps, but nothing about the application being automagically created from the source when your backend code is python (and web2py to boot).
I think it might be impossible to just drop your web2py app in and get a final product. For one, how will Appcelerator know that a given URL corresponds to a given controller and function? How will it perform searches on objects in your database? Do you expect it to read the DAL(...) connection string and just connect?
If you don't do ANY server-side processing, and don't use ANY datasources except for JSON, then maybe this would work. Maybe. But I highly doubt it will be automatic, or even all that easy.
It seems to me that you would have to hit every page and save the pages as html to a disc, and then drop the outputted HTML/CSS/JS markup into Titanium. But that means that if you ARE processing forms or searches, or doing anything interesting in the controllers, the titanium application will not have anything to process the server-side backend stuff.
That being said, titanium does work with php code, but not perfectly, And I see issues when using frameworks as opposed to raw php.
http://www.flickr.com/photos/funkatron/4011561849/
It didn't work that great, regardless. Titanium Desktop does still support PHP though, but developing an app with a server-side framework like CI is basically not going to work.
There was also something in the docs about processing python code, but all I saw was that you can place python in the "client" end of the HTML using a script tag as such:
<script type='text/python'>
# ... python code ?
</script>
(ref: http://developer.appcelerator.com/doc/desktop/python )
But that's not going to help with a web2py app.
IN SHORT -- I advise you download the app and create a hello world project. Then follow a tutorial on migrating or converting your application to Titanium. You'll probably have to rework a lot of things, and I'm not sure how you'd get the execution environment required for web2py, so you might have to rework some of the basic GLUON code which web2py is built on.
Sorry :(
You can, however, probably find a way to create a Java application that includes a copy of (a) rocket webserver, (b) python 2.5 or greater interpreter (c) web2py framework, (d) web2py application and package all this in such a way that it runs inside your java application (which will run on any platform) and shows an HTML view to the enduser. Then you could maintain it as a web2py app and just copy the app to your java bundle. I'm not sure if that's any easier in the end, but it looks like you'll either have to port to Titanium or Wrap with Java (or another language suitable platform-agnostic language).