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Python实现的下载8000首儿歌的代码分享

程序员文章站 2022-04-01 23:45:22
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下载8000首儿歌的python的代码:

复制代码 代码如下:

#-*- coding: UTF-8 -*-

from pyquery import PyQuery as py
from lxml import etree
import urllib
import re
import os
import sys
import logging

def format(filename):
tuple=(' ',''','\'')
for char in tuple:
if (filename.find(char)!=-1):
filename=filename.replace(char,"_")
return filename

def download_mp3(mp3_url, filename,dir):
f = dir+"\\"+filename
if os.path.exists(f):
logger.debug(f+" is existed.")
return

try:
open(f, 'wb').write(urllib.urlopen(mp3_url).read())
logger.debug( filename + ' is downloaded.')
except:
logger.debug( filename + ' is not downloaded.')


def download_all_mp3(start,end,dir,logger):
for x in range(start,end):
try:
url = "http://www.youban.com/mp3-d" + str(x) + ".html"
logger.debug(str(x) + ": "+url)
doc = py(url=url)
e = doc('.mp3downloadbox')
if e is None or e == '':
logger.debug(url+" is not existed.")
return

e = unicode(e)
#logger.debug( e)
regex = re.compile(ur".*

(.*)

.*downloadboxlist.*? m = regex.search(e)
if m is not None:
title = m.group(1).strip()
title2 = str(x)+"_"+title + ".mp3"
#title2 = re.sub(' ','_',title2)
title2 = format(title2)
link = m.group(2)
#logger.debug( "title:" + title + " link:" + link)
if link == '' or title == '':
logger.debug(url + " is not useful")
continue
logger.debug(str(x)+": "+link)
download_mp3(link,title2,dir)
except:
logger.debug(url+" met exception.")
continue


if __name__ == "__main__":
dir_root = "e:\\song"
if sys.argv[3] != '': dir_root=sys.argv[3]

start,end = 1,8000
if sys.argv[1] >= 0 and sys.argv[2]>=0:
start,end = int(sys.argv[1]),int(sys.argv[2])
print ("Download from %s to %s.\n" % (start,end))

dir = dir_root + "\\"+str(start)+"-"+str(end)
if not os.path.exists(dir):
os.mkdir(dir)
print "Download to " + dir + ".\n"

logger = logging.getLogger("simple")
logger.setLevel(logging.DEBUG)
fh = logging.FileHandler(dir+"\\"+"download.log")
ch = logging.StreamHandler()
formatter = logging.Formatter("%(message)s")
ch.setFormatter(formatter)
fh.setFormatter(formatter)
logger.addHandler(ch)
logger.addHandler(fh)
download_all_mp3(start,end,dir,logger)

有需要的可以参考继续修改。

Python实现的下载8000首儿歌的代码分享

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