download urara stamps (http://www.tbs.co.jp/anime/urara/special/special03.html) with python3.

urara_dl.py

#!/usr/local/bin/python3
import urllib.request

urlfmt = "http://www.tbs.co.jp/anime/urara/special/img/stamp_{0:02d}/{1:02d}.png"
fnfmt = "{0:02d}_{1:02d}.png"

for di in range(1, 13):
    for fi in range(1, 100):
        try:
            url = urlfmt.format(di, fi)
            fn = fnfmt.format(di, fi)
            print("downloading: {0} ... ".format(url));
            print(" -> {0} ... ".format(fn), end='', flush=True);
            urllib.request.urlretrieve(url, fn)
            print("complete.");
        except urllib.error.HTTPError as e:
            print("error: {0}".format(e.code));
            if e.code == 404:
                print("go to next dir...");
                break

print("completed.");