On Oct 1, 6:01 pm, Laszlo Nagy <gand...@shopzeus.com> wrote: > I'm looking for an open source, AJAX based widget/windowing framework. > Here is what I need: > > - end user opens up a browser, points it to a URL, logs in > - on the server site, sits my application, creating a new session for > each user that is logged in > - on the server site, I create windows(frames), put widgets on them, > write event handlers etc. Just like with wx or pygtk. > - However, windows are created in the user's browser, and events are > triggered by Javascript, and sent back to server through AJAX. > - the server side would be - of course - written in Python. > > I was looking these projects: > > http://www.uize.com/http://pyjs.org/ > > There are many frameworks listed here which I did not > check:http://internetmindmap.com/javascript_frameworks. I have no idea which > has Python support, and probably there are only a few that worth looking > at. I wonder if you could tell me which are the pros and contras for > these frameworks. If there is a comparison available on the NET, > pointing me to the right URL would help a lot. > > The bottom line... > > My main goal is to develop enterprise class OLTP database applications. > I'll need grid widget to display data in tabular format, and I'll use > events heavily for data manipulation, live search, tooltips etc. I'm > familiar with wxWidgets, pygtk and other toolkits, but not with AJAX. I > have never used a system like that.
pyjamas is, despite having a browser-based option, about as far away from "web" development as you can possibly get, with only the lack of access to "standard" python libraries and having to work with python reimplementations of math.py, re.py, time.py etc. being the stark reminder that you're reaallly not in kansas. the only thing that you have to get used to is that communication with the external world is done through HTTPRequest.py and, typically, its derivative, JSONService.py - even in the desktop version of pyjamas. but, if you're used to event-driven desktop environments such as wxWidgets and pygtk then the asynchronous nature of JSONService won't be a problem for you. i recommend that if you intend to develop an enterprise-style CRUD (create-retrieve-update-delete) application, that you take a look at the PureMVC-based examples: http://pyjs.org/examples/ search for "employeeadmin" and "timesheet". kees bos joined the project a few months ago, and his very first task that he set himself was to improve the pyjs compiler to the point where http://puremvc.org's python library could be used *unmodified* in pyjamas applications. he then set about porting (and bug-fixing!) the two wxWidgets python-puremvc examples to use pyjamas widgets. these two examples should give you a big head-start on what you want to achieve. if you are stuck on "pure javascript" frameworks, however, and you need "widgets", then there is one that i can tentatively recommend (with some trepidation, due to its enooormous size): extjs [no don't even _think_ of trying to combine it with pyjamas] and the other one is qooxdoo which is veery easy and intuitive, and well-designed. i don't honestly know if qooxdoo has a grid widget, but extjs most certainly does (and then some). the only issue with extjs is the sheer number of options and the whopping great size. whichever option you pick, you're basically in for quite a bit of learning, to get "started". if you pick pyjamas and you post on the pyjamas-dev list _please_ do remember to follow the rules about providing full context and a worked example if it's a programming issue, to help save people time, ok? :) l. -- http://mail.python.org/mailman/listinfo/python-list
