python - Python beautifulsoup - 获取输入值

Question

我有很多这样的表行：

<tr>
    <td>100</td>
    <td>200</td>
    <td><input type="radio" value="123599"></td>
</tr>

迭代：

table = BeautifulSoup(response).find(id="sometable") # Make soup.

for row in table.find_all("tr")[1:]: # Find rows.
    cells = row.find_all("td") # Find cells.

    points = int(cells[0].get_text())
    gold = int(cells[1].get_text())
    id = cells[2].input['value']

    print id

错误：

File "./script.py", line XX, in <module>
id = cells[2].input['value']
TypeError: 'NoneType' object has no attribute '__getitem__'

如何获得输入值？我不想使用正则表达式。

Answer 1

soup = BeautifulSoup(html)
try:
    value = soup.find('input', {'id': 'xyz'}).get('value')
except Exception as e:
    print("Got unhandled exception %s" % str(e))

Answer 2

你想在单元格内找到 <input> 元素，所以你应该像这样在单元格上使用 find/find_all ：

cells[2].find('input')['value']