Download 8000 children's songs in Python-Python tutorial

This article mainly introduces how to download the code for the first 8000 children's songs in Python. This article provides the implementation code directly and downloads resources from the companion network, for more information, see the python code for downloading the 8000 children's song:

The code is as follows:

#-*-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 t:
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('{downloadbox ')
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 t:
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)

If necessary, refer to continue modification.