作者:Vamei 出處:http://www.cnblogs.com/vamei 歡迎轉載,也請保留這段聲明。謝謝!
最近挖煤君上了博客園推薦博客的排行榜,甚是高興。看着自己名次上升,是件很開心的事情。
看着推薦榜上的諸位大神,再加上QQ群里的交流,我骨子里的八卦精神又一次發癢,所以就做了個爬蟲,把推薦榜上各位的入園時間、粉絲數、排名給搜羅了一下,做成一個泡泡圖。
看起來,排名不是完全由粉絲數決定的,但也有相當大的相關性。大伙的眼睛是雪亮的啊。
看到肥嘟嘟沉淀在下面的諸位大神,挖煤君表示由衷敬佩。
大家來找自己的泡泡吧。Vamei躲在右下角的小角落哦!
挖煤君的小小爬蟲是Python寫的,圖是D3.js畫的。歡迎點贊留言加粉兒哦,挖煤君也想向下沉淀沉淀。
泡泡的面積和粉絲數成正比,x軸為入園時間,y軸為排名。
D3老的瀏覽器可能不支持。Chrome效果最佳。各位能給我反饋一下不同瀏覽器的效果如何?
2014.03.08數據更新
Python爬蟲代碼:
#-*- coding: UTF-8 -*- # By Vamei # scrape the cnblogs import requests import BeautifulSoup import re import json from datetime import datetime def read_page(url, method="get"): ''' read the html page via the URL ''' status_code = 0 while status_code != 200: if method == "get": r = requests.get(url) elif method == "post": r = requests.post(url) status_code = r.status_code print status_code page = r.content return page def parse_person_profile(relative, info={}): ''' retrieve the information from the personal profile page ''' r = read_page("http://home.cnblogs.com/u%s" % relative) soup = BeautifulSoup.BeautifulSoup(r) # the count of the followers el = soup.find("a", {'id':"follower_count"}) info['粉絲數'] = int(el.getText()) # the time of the registration el = soup.find("div", {'id': "ctl00_cphMain_panel_profile"}) profile = el.ul reg_time = el.ul.findChildren()[0] raw = reg_time.getText() m = re.findall("(\d+)", raw) m = map(int, m) dt = datetime(year=m[0], month=m[1], day=m[2]) info['開博時間'] = dt.strftime("%Y%m%d") return info def cnblogs_recommend_150(): ''' workhouse ''' url = "http://www.cnblogs.com/aggsite/ExpertBlogs" r = read_page(url, method="post") soup = BeautifulSoup.BeautifulSoup(r) # retrieve the information blogger by blogger info = [] anchors = soup.findAll('a') # blogger by blogger for i, a in enumerate(anchors): name = a.getText() p_info = {'昵稱': name, '排名': i + 1} # parse_person_main(a['href'], p_info) parse_person_profile(a['href'], p_info) info.append(p_info) # write the retrieved data into the file with open("info", "w") as f: rlt = json.dumps(info, indent=4, encoding="UTF-8", ensure_ascii=False) f.write(rlt.encode("utf8")) return info if __name__ == "__main__": info = cnblogs_recommend_150()
Javascript代碼所在位置。