# To run this, download the BeautifulSoup zip file

# http://www.py4e.com/code3/bs4.zip

# and unzip it in the same directory as this file

import urllib.request, urllib.parse, urllib.error

from bs4 import BeautifulSoup

import ssl

import re

# Ignore SSL certificate errors

ctx = ssl.create_default_context()

ctx.check_hostname = False

ctx.verify_mode = ssl.CERT_NONE

def navigate(url, count, position):

html = urllib.request.urlopen(url, context=ctx).read()

soup = BeautifulSoup(html, 'html.parser')

# Retrieve all of the anchor tags

tags = soup('a')

i = 0

for tag in tags:

i+=1

if i == int(position):

new_url = tag.get('href', None)

new_count = int(count) - 1

print_item(new_url)

if new_count > 0:

navigate(new_url, new_count, position)

break

def print_item(link):

temp_s = link.replace('http://py4e-data.dr-chuck.net/known_by_','')

temp_s = temp_s.replace('.html','')

print(temp_s)

url = input('Enter URL: ')

count = input('Enter Count: ')

position = input('Enter position: ')

print(" ")

print_item(url)

navigate(url, count, position)