Downloader script for companion slides from http://db-book.com/

dbbook_slides_download.py

#!/usr/bin/env python

# script to download all study material slides from http://db-book.com/

# =======================================================================
# Author : Nevin Valsaraj <nevin[dot]valsaraj32[at]gmail[dot]com>
# Distributed under the MIT License.
# (See full license at http://opensource.org/licenses/MIT)
# =======================================================================

# In short, I can't be held accountable if you wreck your computer.

import urllib
import os

directory = "DB_Book_Slides"

if not os.path.exists(directory):
    os.makedirs(directory)

filenames = []
for i in range(1, 27):
    filenames.append('ch' + str(i))
filenames.extend(['appB', 'appC', 'appD', 'appE'])

for i in filenames:
    urllib.urlretrieve(
        "http://codex.cs.yale.edu/avi/db-book/db6/slide-dir/PDF-dir/" +
        str(i) + ".pdf",
        os.path.join(directory, "chapter_" + str(i) + ".pdf")
    )