Used to create a single mp3 file for the various NPR news shows that are not on iTunes as a podcast.

MakeNprShow.py

"""
Used to create a single mp3 file for the various NPR news shows that are not on
iTunes as a podcast.

Dependency on:
  mp3wrap which can be installed with your favorite package manager
"""

import os
import os.path
from datetime import date, timedelta
import sys
import urllib2
import shutil

BASE_URL = "http://public.npr.org/anon.npr-mp3/npr/"
SHOW_URL = os.path.join(BASE_URL, "{show}/{y}/{m}/{y}{m}{d}_{show}_{idx}.mp3")

def downloadShow(name, offset=0):
    d = date.today() - timedelta(days=offset)
    year = str(d.year)
    month = str(d.month).zfill(2)
    day = str(d.day).zfill(2)

    opener = urllib2.build_opener(urllib2.HTTPRedirectHandler())

    files = []
    for i in range(1,50):
        idx = str(i).zfill(2)
        requestUrl = SHOW_URL.format(show=name,
                                     y=year,
                                     m=month,
                                     d=day,
                                     idx=idx)

        try:
            resp = opener.open(requestUrl)
            fname = "%s_%s.mp3" % (name, idx)
            with open(fname,"w") as outputFile:
                shutil.copyfileobj(resp, outputFile)
            files.append(fname)
        except urllib2.HTTPError:
            break

    if len(files) > 0:
        join = " ".join(files)
        outName = "%s_%s_%s_%s.mp3" % (name, year, month, day)
        realOutName = "%s_%s_%s_%s_MP3WRAP.mp3" % (name, year, month, day)
        r = os.system("mp3wrap %s %s" % (outName, " ".join(files)))
        if r == 0:
            os.rename(realOutName, outName)

def main():
    if len(sys.argv) < 2:
        print "Usage: %s show_name [day_offset]" % (sys.argv[0])
        print "  show_name examples: 'atc', 'me', 'wesat', 'wesun'"
        print "  day_offset is number of days in past to attempt a download"
        sys.exit(1)

    showName = sys.argv[1]
    dayOffset = 0
    if len(sys.argv) > 2:
        dayOffset = sys.argv[2]

    downloadShow(showName, int(dayOffset))

if __name__ == "__main__":
    main()