我正在嘗試Postgres使用腳本中的requests庫(kù)測(cè)試存儲(chǔ)在數(shù)據(jù)庫(kù)中的 URL 的有效性Python 3.x，但出現(xiàn)以下錯(cuò)誤：$ python3 test_urlvalid.pyTraceback (most recent call last):  File "test_urlvalid.py", line 55, in <module>    response = requests.get(row)  File "...python3.7/site-packages/requests/api.py", line 75, in get    return request('get', url, params=params, **kwargs)  File "...python3.7/site-packages/requests/api.py", line 60, in request    return session.request(method=method, url=url, **kwargs)  File "...python3.7/site-packages/requests/sessions.py", line 533, in request    resp = self.send(prep, **send_kwargs)  File "...python3.7/site-packages/requests/sessions.py", line 640, in send    adapter = self.get_adapter(url=request.url)  File "...python3.7/site-packages/requests/sessions.py", line 731, in get_adapter    raise InvalidSchema("No connection adapters were found for '%s'" % url)requests.exceptions.InvalidSchema: No connection adapters were found for '('http://sampleurl.com',)'這是我的腳本的一個(gè)片段：dbconn = create_engine('postgresql+psycopg2://' + user + ':' + password + '@' + host + ':' + str(port) + '/' + database , echo=False)dbconnraw = dbconn.raw_connection()cur = dbconnraw.cursor()cur.execute('SELECT email_domain_url FROM testurlsource')rows = cur.fetchall()for row in rows:    response = requests.get(row)    urlstat = response.status_code    if urlstat<400:        print('valid')    else:        print('invalid')錯(cuò)誤代碼所指的行是：response = requests.get(row)由于錯(cuò)誤代碼的最后一行%s在 url 中引用，'('http://sampleurl.com',)'因此它可能與將每個(gè)表?xiàng)l目轉(zhuǎn)換為字符串有關(guān)。也許我需要更改一些內(nèi)容，以便在"(),'"將行輸入腳本時(shí)刪除字符。我嘗試使用regex后者，但出現(xiàn)錯(cuò)誤：AttributeError: 'list' object has no attribute 'encode'有什么建議嗎？