import requests
import webbrowser
from bs4 import BeautifulSoup

targetSite = "http://abc.com/"

def getHtml(url):
    response = requests.get(url)
    response.encoding = response.apparent_encoding
    return BeautifulSoup(response.text, 'lxml')


pageNum = 1
while True:
    html = getHtml(targetSite+"page/"+str(pageNum))

    ~~~~略~~~~

    inp = input("END?(e) >> ")
    if inp == "e" : break
    else:
        pageNum += 1

getHtml(targetSite+"page/"+str(5))