python script for batch opening urls and searching with keywords

batchopensearch.py

def slowopen(fname):
    with open(fname, 'r') as f:
        for url in f:
            #            url = slowopen_ieee(url)
            if platform.system() == 'Darwin':
                os.system(" ".join(["open -a Safari", url]))
                #os.system(" ".join(["open", url]))
            else:
                os.system(" ".join(["start", url]))
            time.sleep(5)

def sortfile(srcfile, dstfile):
    urls = []
    with open(srcfile, 'r') as f:
        for url in f:
            urls.append(url)
    sortedurls = sorted(urls)
    with open(dstfile, 'w') as f:
        f.write('\n'.join(sortedurls))


def slowsearch(fname):
    with open(fname, 'r') as f:
        for item in f:
            #            item = slowopen_ieee(item)
            item = 'http://search.aol.com/aol/search?q=' + '+'.join(item.split(' '))
            if platform.system() == 'Darwin':
                #os.system(" ".join(["open -a Safari", item]))
                os.system(" ".join(["open", item]))
            else:
                os.system(" ".join(["start", item]))
            time.sleep(5)