Walter Traspadini uolter

Cloud Solution Architect

uolter / init_flaskapp.sh

Created November 9, 2012 13:53

flask project dir structure

	#!/bin/bash

	APP_NAME="${1}"

	if [ "$APP_NAME" = "" ]; then
	echo "you must provide an application name!! "
	echo "usage: <this script> <app name>"
	exit
	fi

uolter / flaskapp_init.py

Last active October 12, 2015 15:18

flask application basic setup (python flaskapp_init.py -a <myapp> )

	#!/usr/local/bin/python

	from optparse import OptionParser
	import os


	PATH_SEPARATOR = os.sep

	html_layout = "<!DOCTYPE html>\n" \
	"<html>\n" \

uolter / jsonp.py

Created November 26, 2012 09:16

jsonp decorator for python

	'''
	Created on Nov 23, 2012

	@author: uolter
	'''


	from functools import wraps
	from flask import request, current_app

uolter / vhost_dotcom2013

Created December 4, 2012 14:07

Rewrite rule based on cookie and matching URI for preview landing page

	RewriteEngine on
	RewriteLog /var/log/apache2/rewrite.log
	RewriteLogLevel 5

	# Check whether the cookie role exists and whether the url does not contain PRV.shtml
	# if so it executes the rewrite rule
	RewriteCond %{HTTP_COOKIE} role=(.*)
	RewriteCond %{REQUEST_URI} !^._PRV.
	RewriteRule /art/(.*).shtml /art/$1_PRV.shtml [NC,QSA]

uolter / gist:4258624

Created December 11, 2012 13:39

find and exclude svn directory

find . -type f | grep -v '\.svn' | xargs grep "img/add.png"

uolter / gist:4258642

Created December 11, 2012 13:41

svn add new files only

svn st | grep ? | awk '{print $2}' | xargs svn add

uolter / huffman.py

Created April 22, 2013 13:33

Huffman code with python

	from collections import Counter
	import heapq

	class Node(object):
	def __init__(self, pairs, frequency):
	self.pairs = pairs
	self.frequency = frequency

	def __repr__(self):
	return repr(self.pairs) + ", " + repr(self.frequency)

uolter / collaborative_filtering.py

Created June 30, 2013 09:31

Simple collaborative filtering in python

	import numpy as np
	from scipy.optimize import fmin_cg


	def cost(p, Y, R, alpha):
	"""
	Calculates collaborative filtering cost function.

	Arguments
	----------

uolter / cdb.sh

Last active December 28, 2015 05:29

	#!/bin/bash

	# save this script in your bin directory source it.
	# source cdb.sh
	# (it would be nice to do that in your bash profile as well.)
	# Then you can run the cdb function in every terminal and bookmark any path you like.s

	function show_bookmark {
	for f in `ls ~/.cd_bookmarks/`
	do

uolter / counting_string

Created November 26, 2013 15:01

Counting characters in a string putting them in a dictionary

	import sys
	import unittest

	def count(text):

	# if the text is None or empty do nothing
	if text:
	text = text.replace(' ', '')
	else:
	return None