python - 使用 scrapy 选择单选按钮

Question

我如何使用 scrapy 选择单选按钮？

我正在尝试选择以下内容

formdata={'rd1':'E'} does not work

<input type="radio" name="rd1" value="E" checked="checked" />Employee
<input type="radio" name="rd2" value="o" />Other

Answer 1

您可以使用lxml.cssselector选择单选按钮。

>>> import lxml.html
>>> from lxml.cssselect import CSSSelector
>>> str = """
... '<input type="radio" name="rd1" value="E" checked="checked" />Employee
... <input type="radio" name="rd2" value="o" />Other'
... """
>>> input_sel = CSSSelector('input[name="rd1"]')
>>> lx = lxml.html.fromstring(str)
>>> input_sel(lx)
[<InputElement b7e7665c name='rd1' type='radio'>]