def crawl_web(seed,mx_pg,mx_dp):
tocrawl = [[seed,0]]
crawled = []
index = {}
while tocrawl:
page_url ,depth= tocrawl.pop(0)
print 'This is the maximum number of pages crawled'+' '+str(len(crawled))
print 'This is the DEPTH' , depth,page_url
#print index
for key in index.keys():
print key, rm_url(index[key])
if (page_url not in crawled) and (len(crawled)< mx_pg) and (depth <=mx_dp):
content_soup ,base_robot_parsed_url= get_page(page_url)
make_index(index, page_url, content_soup)
outlinks=all_links(content_soup,base_robot_parsed_url)
add_to_tocrawl(tocrawl, outlinks,depth,crawled)
crawled.append(page_url)
print '++++++++++++++++++++++++++++++++++++++++++++++++++++++++++'
#yet to check for urls that contains urls that linked to the same pages
return index
def crawl_web(seed, mx_pg, mx_dp):
tocrawl = [[seed, 0]]
crawled = []
index = {}
while tocrawl:
page_url, depth = tocrawl.pop(0)
print 'This is the maximum number of pages crawled' + ' ' + str(
len(crawled))
print 'This is the DEPTH', depth, page_url
#print index
for key in index.keys():
searchword = Searchword(keyword=key, urls=rm_url(
index[key])) #print key, rm_url(index[key])
searchword.save()
print key, rm_url(index[key])
if page_url not in crawled and len(crawled) < mx_pg and depth <= mx_dp:
content_soup, base_robot_parsed_url = get_page(page_url)
make_index(index, page_url, content_soup)
outlinks = all_links(content_soup, base_robot_parsed_url)
add_to_tocrawl(tocrawl, outlinks, depth, crawled)
crawled.append(page_url)
print '++++++++++++++++++++++++++++++++++++++++++++++++++++++++++'
#yet to check for urls that contains urls that linked to the same pages
return index
def crawl_web(seed,mx_pg,mx_dp,filter_list=None):
'''
The function is responsible for the entire crawling process
This includes making index,getting all links on a particular page
passing and so on.
>>>
'''
tocrawl = [[seed,0]]
crawled = []
graph={}
outlinks=[]
No_crawled=0
while tocrawl:
page_url ,depth= tocrawl.pop(0);#here we will count the number of document removed from the frontier
if page_url:
db.crawler_web_statistic.update({"_id":ObjectId("517dc20440ade61b20becb7d")},{"$inc":{"Number_of_removed_urls":1}},safe=True)
if (page_url not in crawled) and (len(crawled)< mx_pg) and (depth <=mx_dp):
print 'Crawling %s ,depth %d'%(page_url,depth)
content_soup ,base_robot_parsed_url= get_page(page_url)
'''
This module is responsible for obtaining all page info
'''
if not test_doc(content_soup):
make_index(page_url, content_soup)
outlinks=all_links(content_soup,base_robot_parsed_url)
else:
db.crawler_web_statistic.update({"_id":ObjectId("517dc20440ade61b20becb7d")},{"$inc":{"Number_of_duplicate_documents":1}},safe=True)
#here will count the number of document where duplicate existed
'''
Below am trying to obtain the relation between the page_url and it links. This
pairs form a graph to be used in our importance score calculation
'''
graph[page_url]=outlinks
add_to_tocrawl(tocrawl, outlinks,depth,crawled)
crawled.append(page_url)
print '++++++++++++++++++++++++++++++++++++++++++++++++++++++++++'
#yet to check for urls that contains urls that linked to the same pages
No_crawled=len(crawled)
print 'This is the number of pages crawled'+' '+str(len(crawled))
return graph,No_crawled,mx_pg,seed
def crawl_web(seed):
tocrawl = [seed]
crawled = []
index = {}
graph = {}
while tocrawl:
page_url = tocrawl.pop()
if page_url not in crawled:
content_soup ,base_robot_parsed_url= get_page(page_url)
make_index(index, page_url, content_soup)
outlinks=all_links(content_soup,base_robot_parsed_url)
graph[page_url] = outlinks
add_to_tocrawl(tocrawl, outlinks)
crawled.append(page_url)
return index
if __name__=='__main__':
crawl_web('http://joblistghana.com')
else:
pass
def compute_ranks(graph):
damping_factor = 0.8
num_of_loops = 10
ranks = {}
number_of_pages = len(graph)
for page in graph:
ranks[page] = 1.0 / number_of_pages