尝试挑战 python challenge

2**38

import string

l = string.ascii_lowercase

m = """g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp.
bmgle gr gl zw fylb gq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle.
sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj."""
t = m.maketrans(l, l[2:] + l[:2])
print(m.translate(t))

print("map".translate(t))

text = ''
pattern = re.compile('[a-zA-Z]')
result = pattern.findall(text)
print(''.join(result))

import re
import urllib.request


def next_page(p):
    url = 'http://www.pythonchallenge.com/pc/def/linkedlist.php?nothing=%s' % p
    with urllib.request.urlopen(url) as url:
        text = url.read()
        m = re.match(r'.*and the next nothing is ([0-9]+)', text.decode("utf-8"))
        if not m: print(text,p)
        return m.group(1)

p = 12345
next_page(p)
for i in range(400):
    p = next_page(p)