问Python在循环期间停止创建新文件

EN

while i < len(urls_to_scrape):

    with urllib.request.urlopen(urls_to_scrape[i]) as response:
        html = response.read()

    smashsoup = BeautifulSoup(html,'html.parser')
    title = smashsoup.find('h1').get_text()
    author = smashsoup.find('a', {'itemprop':'author'}).get_text();
    complete_title = title +' By '+ author

    filename = hashlib.md5(complete_title.encode('utf-8')).hexdigest() + ".txt"
    imgname = hashlib.md5(complete_title.encode('utf-8')).hexdigest() + ".jpg"
    short_desc = smashsoup.find('div', {'itemprop':'description'}).get_text();


    try:
        long_desc = smashsoup.find('div', {'id':'longDescription'}).get_text();
    except:

        long_desc = ""


    cats = smashsoup.find('div', {'itemprop':'genre'})

    category = ""
    for cat in cats.find_all('a'):
        category += cat.get_text() + " - "


    img = smashsoup.find('img',{'itemprop':'image'})
    source = img.get('src');
    nsource = source.replace('-thumb','')

    #compile everything into a single text document
    fo = open(filename,'a')
    fo.write(str(complete_title.encode('ascii','ignore'))+"\n\n")
    fo.write(str(short_desc.encode('ascii','ignore'))+"\n\n")
    fo.write(str(long_desc.encode('ascii','ignore'))+"\n\n")
    fo.write(category+"\n\n")

    fo.flush()
    fo.close()

    i += 1