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WordPress URL Rewrite

In Code on 13 July 2010 tagged PHP, Wordpress with no comments

WordPress has it’s own URL management system, and when developing websites it’s convenient to be able to add new rules dynamically. I’ve used this for two websites, music.vtechphones.com and for a site I am building now. It’s also great to keep all modifications in one place, so upgrades are easier, and easier for another developer [...]

Python Performance Part 3: Python 3000 and Transforming Large Lists into Seperate Smaller Lists

In Code on 4 December 2008 tagged Python with no comments

Preface
This is a redux of Python Performance Part 1, where the fastest method was using the reduce builtin function in Python2.5. December 3rd, Python 3000 final was released so I have downloaded it and gone over some of these scripts again. In Python 3000 the reduce function is no longer a builtin, and has moved [...]

Python Performance Part 2 Redux: Split & Reduce Large Strings for 'A Href' Hypertext

In Code on 17 June 2008 tagged Python with no comments

split_2.py
def get_value(a):
return a[1:a.find(">")-1]
hrefs = map(get_value,open(“hypertext.html”,”r”).read().split(“<a href=”))

Timing Comparison: ~ 300% Performance Improvement
Note: hypertext.html is 48MB.
braydon@bgf:~/python_tests/extract$ time python split.py

real 0m1.263s
user 0m1.112s
sys 0m0.156s

braydon@bgf:~/python_tests/extract$ time python split_2.py

real 0m0.392s
user 0m0.268s
sys 0m0.120s

split.py
Previously, I had found [...]

Python Performance Part 2: Parsing Large Strings for 'A Href' Hypertext

In Code on 16 June 2008 tagged Python with no comments

Goal
Write a fast Python script that will take a large string and reduce it to a list of all of the hyperlinks in the html string; such as [”http://world.org”,”/tree”].
Attempt 1: Self-Recursion
f = open(‘hypertext_sm.html’,'r’)
ahrefs = []
count = []
def find_ahref(h):
a = h.find(“<a href=”)
if a != -1:
[...]

Python Performance Part 1: Transforming Large Lists into Seperate Smaller Lists

In Code on 14 June 2008 tagged Python with no comments

Goal
Write a fast Python script that will take a large list and break it up into smaller sub-lists based on a set size; such as transforming [a,b,c,d,e,f] into [[a,b],[c,d],[e,f]].
Attempt 1: Map/Reduce (0.93s)
#import a list of 247,213 integers
from oids import oids

def pre(a):
return (list(), a, 0)

def make_sets(a,b):
set_size = 8
[...]

The Importance in Rewriting Code

In Code on 3 January 2008 with 1 comment

I needed a way of translating “644″, an object permission setting, into something more readable.
I wanted to be able to do the following:

def determinePermissions(obj):
obj_usr= {"owner":obj.owner, "group":obj.group, "everyone":True}

usr = {
"owner":cherrypy.session.get('user'),

"group":cherrypy.session.get('group'),
[...]