January 2014
6 links saved this month.
users.softlab.ece.ntua.gr
A Python implementation of the Ulam prime spiral, and a benchmark where running the same grid generation under PyPy comes out around fifty times faster than CPython.
askaboutphp.com
Part one of a guide to measuring how long a web page takes to load and graphing the result in Cacti.
gisgraphy.com
An open source geocoder built on OpenStreetMap and GeoNames data, offering geocoding, reverse geocoding and point-of-interest search as self-hosted or hosted web services.
siek.blogspot.co.uk
A primer on the notation of programming language theory — inductive definitions, grammars, operational semantics and typing rules — worked through the simply-typed lambda calculus.
push.cx
How to implement the flyweight pattern in Python, using __new__ and a weak-reference pool so that identical objects are shared instead of duplicated.
alexmarandon.com
A walkthrough of building an embeddable jQuery widget, covering code and CSS isolation, loading jQuery on demand, and fetching cross-domain data with JSONP.
