letters.py 文件源码

def unsub():
    if request.method == 'POST':
        addr = request.form['addr'].lstrip().rstrip()
        f = io.open('unsubscribers.txt', 'a', encoding="utf-8")
        f.write(addr.decode('utf-8') + u'\r\n')
        f.close()
        f = io.open('static/whitelist.txt', 'r', encoding="utf-8")
        lines = f.readlines()
        f.close()
        f = io.open('static/whitelist.txt', 'w', encoding="utf-8")
        for line in lines:
            if addr not in line:
                f.write(line.decode('utf-8'))
        f.close()
        return render_template('unsubscribed.html',addr=addr)