try:
    from urllib2 import *
except:
    from urllib.request import build_opener #py 3
    from urllib.error import URLError
    from urllib.error import HTTPError

def printLns(ls):
    for s in ls:
        print(s)


def urlExists(url):
    opener = build_opener()
    opener.addheaders = [('User-agent', 'Mozilla/5.0')]
    try:
        f = opener.open(url)
        c = f.read()
        f.close()
        return True
    except HTTPError:
        #print("Error 404: "+url)
        return False



def downloadFile(url, path):
    opener = build_opener()
    opener.addheaders = [('User-agent', 'Mozilla/5.0')]
    f = opener.open(url)
    c = f.read()
    f.close()
    f = open(path, "wb")
    f.write(c)
    f.close()


def readUrl(url):
    opener = build_opener()
    opener.addheaders = [('User-agent', 'Mozilla/5.0')]
    f = opener.open(url)
    c = f.read()
    f.close()
    return c


def puts(s):
    print(str(s))
    return s

def writeFile(path, content):
    f = open(path, "wb")
    f.write(content.encode('latin-1'))
    f.close()