Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"| #!/usr/bin/env python | |
| from datetime import datetime | |
| from time import time | |
| from lxml import html, etree | |
| import requests, re | |
| import os, sys | |
| import unicodecsv as csv | |
| import argparse |