Python implements batch download of Sina blogs, and python implements Sina blogs

Python implements batch download of Sina blogs, and python implements Sina blogs

This example describes how to download Sina blogs in batches using python. Share it with you for your reference. The specific implementation method is as follows:

# Coding = UTF-8 import urllib2import sys, osimport reimport stringfrom BeautifulSoup import BeautifulSoupdef encode (s): return s. decode ('utf-8 '). encode (sys. stdout. encoding, 'ignore') def getHTML (url): # proxy_handler = urllib2.ProxyHandler ({'http': 'http: // 211.138.124.211: 80 '}) # opener = urllib2.build _ opener (proxy_handler) # urllib2.install _ opener (opener) req = urllib2.Request (url) response = urllib2.ur Lopen (req, timeout = 15) return BeautifulSoup (response, convertEntities = BeautifulSoup. HTML_ENTITIES) def visible (element): ''' capture the visible text element ''' if element. parent. name in ['style', 'script', '[document]', 'head', 'title']: return False elif re. match ('<! --. * --> ', Str (element): return False elif element = U' \ xa0': return False return Truedef delReturn (element ): '''delete line breaks in the element ''' return re. sub ('(? <! ^) \ N + (?! $) ', '', Str (element )). decode ('utf-8') def validFilename (filename): # windows return re. sub ('[\/:*? <> "| \ Xa0] ','', filename) def writeToFile (text, filename, dirname): if not OS. path. exists (dirname): OS. makedirs (dirname) print encode ('Save to directory'), dirname filename = validFilename (filename) print encode ('Save the article '), filename path = OS. path. join (dirname, filename) if not OS. path. exists (path): f = open (path, 'w') f. write (text) f. close () else: print filename, encode ('already exists') def formatContent (url, title = ''):'' 'Format the article content''' page = getHTML (url) content = page. find ('div ', {'class': 'articalcontent'}) art_id = re. search ('blog _ (\ w + )\. html ', url ). group (1) blog_name = page. find ('span ', id = 'blognamespan '). string if title = '': title = page. find ('h2 ', id = re. compile ('^ t _')). string temp_data = filter (visible, content. findAll (text = True) # Remove the invisible element temp_data = ''. join (map (delReturn, temp_data) # Delete the line break temp_data in the element = Temp_data.strip () # Delete the empty row temp_data = re. sub ('\ n {2,}', '\ n \ n', temp_data) # Delete too many blank lines in the article # output to the file # encoding problem temp_data =' address of this article: '. decode ('utf-8') + url + '\ n \ n' + temp_data op_text = temp_data.encode ('utf-8 ') op_file = title + '_' + art_id }'.txt 'writeToFile (op_text, op_file, blog_name) def articlelist (url): articles = {} page = getHTML (url) pages = page. find ('ul ', {'class': 'sg _ pages '}). span. string Page_num = int (re. search ('(\ d +)', pages ). group (1) for I in range (1, page_num + 1): print encode ('generate Article index on Page % d '% I) if I! = 1: url = re. sub ('(_) \ d + (\. html) $ ',' \ g <1> '+ str (I) +' \ g <2> ', url) page = getHTML (url) article = page. findAll ('span ', {'class': 'atc _ title'}) for art in article: art_title = art. a ['title'] art_href = art. a ['href '] articles [art_title] = art_href return articlesdef blog_dld (articles): if not isinstance (articles, dict): return False print encode ('start downloading ') for art_title, art_href in articles. items (): formatContent (art_href, art_title) if _ name _ = '_ main __': sel = raw_input (encode ('Do you want to download (1) all articles or (2) single article, input 1 or 2: ') if sel = '1 ': # articlelist_url = 'HTTP: // your articlelist_url = raw_input (encode ('Enter the blog article directory link: ') articles = articlelist (articlelist_url) blog_dld (articles) else: # article_url = 'HTTP: // blog.sina.com.cn/s/blog_4db18c430100gxc5.html' article_url = raw_input (encode ('Enter the blog article link: ') formatContent (article_url)

I hope this article will help you with Python programming.