crawl m mine | Python Fiddle

import re
rx=re.compile('(<(form|a)\s[^>]*(action|href)=)',re.MULTILINE)
def get_page(url):
    try:
        import urllib
        opener = urllib.FancyURLopener({})
        f = opener.open(url)
        f.read()
    except:
        print "ERROR"
    return ""

def get_next_target(page):
    start_link = page.find(rx)
    if start_link == -1: 
        return None, 0
    start_quote = page.find('"', start_link)
    end_quote = page.find('"', start_quote + 1)
    url = page[start_quote + 1:end_quote]
    return url, end_quote

def union(p,q):
    for e in q:
        if e not in p:
            p.append(e)

def get_all_links(page):
    links = []
    while True:
        url,endpos = get_next_target(page)
        if url:
            links.append(url)
            page = page[endpos:]
        else:
            break
    return links

def crawl_web(seed,max_pages):
    tocrawl = [seed]
    crawled = []
    while tocrawl:
        last_url = tocrawl.pop()       
        if last_url not in crawled:    
            union(tocrawl, get_all_links(get_page(last_url)))     
            crawled.append(last_url)                              
    return crawled[0:max_pages]
print "Running..."
print crawl_web("http://sympol.net",1)

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