No links are getting added to the parsed_links variable

[r3d_f0x]

I am working on this web crawler and I am using the parsed_links variable to store links that have been found in crawled pages.  When I print the variable though, it is empty.  What is going wrong?  I tried directly adding links to self.links.

git.r3df0x.com/snippets/1

import requests
from bs4 import BeautifulSoup
import threading
import sys
import re

### DEBUGING VARIABLES
domain = 'https://en.wikipedia.org'
all_urls = []
crawled_urls = []
operator_email = '[email protected]'
stealth_mode = False
### These will be removed in the main version
## and replaced with ways of taking input
## from the user.

system_user_agent = 'Stratofortress web crawler - Version 0.1 - Operator ' + operator_email
stealth_user_agent = 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0'
user_agent = ''
if (stealth_mode == True):
    user_agent = stealth_user_agent
else:
    user_agent = system_user_agent

class indexer(threading.Thread):
    def __init__(self, url):
        self.__url = url
        self.links = []
        self.domain = 'unset'
    def __get(self, url, stealth=False):
        if (stealth == True):
            user_agent = stealth_user_agent
        else:
            user_agent = system_user_agent
        return requests.get(url, headers={'user-agent': user_agent})
    def run(self):
        parsed_links = []
        r = self.__get(self.__url)
        html = r.text
        soup = BeautifulSoup(html)
        links = soup.findAll('a', href=True)
        for link in links:
            print link['href']
            #if (link['href'].startswith('http://') or link['href'].startswith('https://')):
            if (re.match('(http|https):\/\/*', link['href'])):
                found_domain = link['href'].split('//')[1].split('/')[0]
                print '======= DOMAIN ==== from http(s):// =====> ' + found_domain
                if (found_domain == domain):
                    parsed_links.append(link['href'])
            if (re.match('^(\/\/)*', link['href'])):
                print '======== Matched // URL ===========> ' + link['href']
        print parsed_links

def main():
    i = indexer(domain)
    i.run()

if __name__ == '__main__':
    main()