Python Crawler

#!/usr/bin/python
import re, urllib
links = []
myurl = raw_input("\nWeb Crawler v1.0\nType your URL including 'http://' or 'ftp://'\nURL: ")
mylog = raw_input("Type your log file name: ")
log = open(mylog + '.txt','w+')
log.write(myurl + '\n')
def crawler(url):
    print ''
    links.append(url)
    for i in re.findall('''href=["'](?!javascript:)(.[^"']+)["']''', urllib.urlopen(url).read(), re.I):
        check = re.match('(?!http|ftp)', i);
        if(check):
            i = myurl + i
        print i
        links.append(i)
try:
    crawler(myurl)
    links = list(set(links))
    links.sort()
    for n in links:
        #print n
        log.write(n +'\n')
    log.close()
    print "\n%i crawled links\nURL: %s" % (len(links)+1, myurl)
except:
    print "Error crawling: " + myurl