What is wrong with my url scanner

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Python

Python2.7

scan

i just made a python script to scan for urls in a website and it keeps looping and not printing the urls it finds, i am working on a pen test tool but i just need this to work. bet is some really simple. if you know where i have gone wrong please tell me. Thanks in advace

import urllib
import sqlite3
import re
import sys

links = []
colur_red = '\033[31m'
colur_end = '\033[0m'
color_green = '\033[32m'

def findurl(text):
    if str(text).find("http") == 0:
        return True
    elif str(text).find("ftp") == 0:
        return True
    elif str(text).find("https") == 0:
        return True
    else:
        return False

def openurl(url):
    try:
        html = urllib.urlopen(url).read()
        getlinks = re.findall(r"""<\s*a\s*href=["']([^=]+)["']""", html)
        for link in getlinks:
            a = findurl(link)
            if a == True:
                links.append(link)
    except:
        print(colur_red + "[-] Error Loading {}".format(str(url)) + colur_end)

def main(site):
    print(color_green + "[+] Starting Scan on {}".format(site) + colur_end)
    openurl(site)
    for url in links:
        print url
        if len(url) == 0:
            print(colur_red + "[-] No URLs Found" + colur_end)
        elif sys.stdin.read(1) == 'q':
            print(color_green + "[+] Stopping Scan" + colur_end)
        else:
            print(color_green + "[+] Found URl and adding it to database" + colur_end)
            #hostname = str(url).replace(':/', '').split('/')[1]
            #db = sqlite3.connect('database.db')
            #cursor = db.cursor()
            #cursor.execute('''INSERT INTO data_1(urls, hostname)VALUES(?,?)''', (url, hostname))
            #db.commit()
            #db.close()
            openurl(url) # i need to add away of exiting by pressing 'q'

command = sys.argv
length = len(command)
num = 0
if len(command) == 1:
    print('please use -u <url>')
else:
    for i in command:
        if i == "-u":
            num = num + 1
            starturl = command[num]
            main(starturl)
        else:
            num = num + 1

What I have tried:

I have tried doing some debuging but just to try and see whats wrong. i know that the it gets the urls fine and i think is to do with the getting urls from links.