Crawling reptile of the best examples of university rankings

Crawling links: http: //www.zuihaodaxue.com/zuihaodaxuepaiming2019.html
programming constructs:
1. Obtain University Rankings Web content getHTMLText ()
2. extract web page content information to the appropriate data structure fillUnivList ()
3. use of data structure shown and outputs the result printUnivList ()

The complete code Python3.7 pycharm

import requests
from bs4 import  BeautifulSoup
import bs4


def getHTMLText(url):
    try:
        r=requests.get(url,timeout=30)
        r.raise_for_status()
        r.encoding=r.apparent_encoding
        return  r.text
    except:
        return ""
def fillUnivList(ulist,html):
    soup = BeautifulSoup(html,"html.parser")
    for tr in soup.find('tbody').children:
        if isinstance(tr,bs4.element.Tag):
            tds=tr('td')#等价于tr.find_all（'td')
            ulist.append([tds[0].string,tds[1].string,tds[2].string])
def printUnivList(ulist,num):
    print("{:^10}\t{:^6}\t{:^10}".format("排名","学校","地区"))
    for i in range (num):
        u=ulist[i]
        print("{:^10}\t{:^6}\t{:^10}".format(u[0],u[1],u[2]))

def main():
    uinfo=[]
    url="http://www.zuihaodaxue.com/zuihaodaxuepaiming2019.html"
    html=getHTMLText(url)
    fillUnivList(uinfo,html)
    printUnivList(uinfo,20)

if __name__ == '__main__':
    main()

Chinese-justification optimization:

def printUnivList(ulist,num):
    print("{:^10}\t{:^6}\t{:^10}".format("排名","学校","地区"))
    for i in range (num):
        u=ulist[i]
        print("{:^10}\t{:^6}\t{:^10}".format(u[0],u[1],u[2]))

change into

def printUnivList(ulist, num):
    print("{0:^10}\t{1:{3}^10}\t{2:^10}".format("排名", "学校", "地区",chr(12288)))
    for i in range(num):
        u = ulist[i]
        print("{0:^10}\t{1:{3}^10}\t{2:^10}".format(u[0], u[1], u[2],chr(12288)))

IndexError modification process may occur: tuple index out of range
so that a certain vertical alignment, CHR () format in which, as well as writing.