Ankita Gupta ankita-gupta-05

#Web scrapers on the internet

See this repo to contribute/see more: https://github.com/cassidoo/scrapers

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.

	# Redis Cheatsheet
	# All the commands you need to know


	redis-server /path/redis.conf # start redis with the related configuration file
	redis-cli # opens a redis prompt


	# Strings.

	from HTMLParser import HTMLParser
	import urllib2
	import os
	import re


	re_url = re.compile(r'^(([a-zA-Z_-]+)://([^/]+))(/.*)?$')

	def resolve_link(link, url):
	m = re_url.match(link)

	import os, filecmp

	codes = {200:'success',404:'file not found',400:'error',408:'timeout'}

	def compile(file,lang):
	if lang == 'java':
	class_file = file[:-4]+"class"
	elif lang == 'c':
	class_file = file[:-2]
	elif lang=='cpp':

	import sys
	from urllib import urlencode
	import requests
	from urlparse import urlparse, parse_qs
	from random import choice
	import re


	self_id = None # your facebook id here
	utc_bday = None # utc timestamp of your birthday

	'''
	Infix calculator
	First tokenize infix expression,
	then transform it into postfix,
	then calculate it.
	E.g.:
	9 - 5 + 2 * 3
	=> 9 5 - 2 3 * +
	'''
	import re