Python has map, reduce, lambda, and list comprehension. Ruby has select, collect, reject, inject, and block.
These techniques allow programmers to perform operations on lists (or dict/hash) effectively. Some of these are not optimized for speed, so do not expect much on speed gain.
Both have set type, collection of distinct values. Set and List/Array are cast able bi-directionally.
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Popular articles - python frameworks 
Python vs Ruby, slightly more in-depth
http://rapd.wordpress.com —
Category: python frameworks Tags:
keystroke savers
http://blog.spathare.com —
A peek at creating the Django Admin interface for any model has floored me completely. I did make a feeble attempt to create something similar for this in Java way back in 2005, but it is quite a daunting task.
More »djng—a Django powered microframework
http://simonwillison.net —
djng is my experiment to see what Django would like without settings.py and with a whole lot more turtles. It’s Yet Another Python Microframework.
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Scaling Django Web Application
http://highscalability.com —
Mike's talk-although Django specific--will really help anyone creating applications on the web. There's a lot of useful Django specific advice and a lot of general good design ideas as well. The topics covered in the talk are:
# Django uses a shared nothing architecture.
* The database is responsible for scaling state.
* Application servers are horizontally scalable because they are stateless.
How to Add Locations to Python Path for Reusable Django Apps
http://codespatter.com —
In this article, codespatter will teach us how to add locations to python path for reusable Django apps. If you have an app that might be useful in another project, it’s best to not refer to the project name in the application so you don’t have to search and remove it when adding to another project.
More »Category: django Tags:
Django Best Practices
http://lincolnloop.com —
This is a living document of best practices in developing and deploying with the Django Web framework. These should not be seen as the right way or the only way to work with Django, but instead best practices we’ve honed after years of working with the framework.
More »Category: django Tags:
Deploying Django applications to a production server
http://www.ibm.com —
In this article, you will learn about the Django framework and how to install it on your local machine. Discover how a Django application is made and about the automatic administration interface created for your application. You will then find out how to deploy your Django application to the Web on a server running Apache and mod_python.
More »Book Keeping System using Django
http://tnovelli.blogspot.com —
Here's a snippet for a new bookkeeping system created by Tom. Check it out.
More »A simple whitelist decorator to ‘protect’ views : Django
http://blog.buttermountain.co.uk —
If you want to restrict access to a particular views by ip address in the form of a white list then this article might be useful to you.
More »4 Hour Liveblog: Website development with Django and Pinax
http://biostumblematic.wordpress.com —
I’ve tinkered with Django before and really liked it. I’ve recently heard about Pinax, which is an open-source set of Django applications that are designed for general “plug and play”-like use on a variety of websites. Many of the features of Pinax are elements that would be great to implement on this portal site I need to work on.
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