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Scrape links from Google News
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| import sys | |
| import multiprocessing | |
| from urllib2 import urlopen, URLError | |
| import chardet | |
| import urlparse, urllib | |
| def fixurl(url): | |
| # turn string into unicode | |
| if not isinstance(url,unicode): | |
| url = url.decode('utf8') | |
| # parse it | |
| parsed = urlparse.urlsplit(url) | |
| # divide the netloc further | |
| userpass,at,hostport = parsed.netloc.partition('@') | |
| user,colon1,pass_ = userpass.partition(':') | |
| host,colon2,port = hostport.partition(':') | |
| # encode each component | |
| scheme = parsed.scheme.encode('utf8') | |
| user = urllib.quote(user.encode('utf8')) | |
| colon1 = colon1.encode('utf8') | |
| pass_ = urllib.quote(pass_.encode('utf8')) | |
| at = at.encode('utf8') | |
| host = host.encode('idna') | |
| colon2 = colon2.encode('utf8') | |
| port = port.encode('utf8') | |
| path = '/'.join( # could be encoded slashes! | |
| urllib.quote(urllib.unquote(pce).encode('utf8'),'') | |
| for pce in parsed.path.split('/') | |
| ) | |
| query = urllib.quote(urllib.unquote(parsed.query).encode('utf8'),'=&?/') | |
| fragment = urllib.quote(urllib.unquote(parsed.query).encode('utf8')) | |
| # put it back together | |
| netloc = ''.join((user,colon1,pass_,at,host,colon2,port)) | |
| return urlparse.urlunsplit((scheme,netloc,path,query,fragment)) | |
| def getArticle(link): | |
| (i, _, _, _, url) = link | |
| print "Requesting #%d [%s]..."%(i, url) | |
| html = u"" | |
| try: | |
| article = urlopen(fixurl(url), timeout = 10).read() | |
| if article: | |
| encoding = chardet.detect(article)['encoding'] | |
| if encoding: | |
| html = unicode(article, encoding) | |
| except UnicodeEncodeError as e: | |
| print "Failed encoding #%d (%s)"%(i, str(e)) | |
| except URLError as e: | |
| print "Failed download #%d (%s)"%(i, str(e)) | |
| except Exception as e: | |
| print "Unknowkn exception #%d (%s)"%(i, str(e)) | |
| return (link, html) | |
| def scrape(fileName): | |
| links = [] | |
| with open(fileName) as f: | |
| for l in f: | |
| (i, _, title, source, _, date, _, url) = l[:-1].decode("utf8").split('\t') | |
| i = int(i) | |
| links.append((i, title, source, date, url)) | |
| pool = multiprocessing.Pool(10) | |
| articles = pool.map(getArticle, links) | |
| print "##### Inserting into DB..." | |
| import sqlite3 | |
| cnx = sqlite3.connect("articles.db") | |
| cur = cnx.cursor() | |
| cur.executemany("""insert into articles(id, date, title, source, url, html) | |
| values(?, ?, ?, ?, ?, ?)""", | |
| [(i, date, title, source, url, html) for ((i, title, source, date, url), html) in articles]) | |
| cnx.commit() | |
| cur.close() | |
| if __name__ == '__main__': | |
| scrape(sys.argv[1]) |
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