random_reorder_pdf_file takes a PDF file as input and generates 30 pdfs with the same slides but in random order. Helpful to study

gistfile1.txt

#!/usr/bin/env python
import sys
from pyPdf import PdfFileWriter, PdfFileReader
from random import shuffle
import sha
import os


def random_reorder_pdf_file(fn):
    fn_base, ext = os.path.splitext(fn)
    if ext != '.pdf':
        raise RuntimeError('Only PDF files supported. Usage: Pass pdf filename as first parameter')

    input_pdf = PdfFileReader(open(fn))
    pages = input_pdf.getNumPages()
    lst = [[i] for i in range(pages)]
    shuffle(lst)

    output_pdf = PdfFileWriter()
    for page_number_lst in lst:
        page_number = page_number_lst[0]
        output_pdf.addPage(input_pdf.getPage(page_number))

    uid = sha.new(str(lst)).hexdigest()
    output_fn = fn_base + uid + '.pdf'

    output_file = open(output_fn, "wb")
    output_pdf.write(output_file)
    output_file.close()


if __name__ == '__main__':
    fn = sys.argv[1]
    for _ in range(30):
        random_reorder_pdf_file(fn)