Question

我想机械化检查所选下拉列表的当前值是否为默认值，然后mechanize将在列表中选择另一个值。下拉列表的html如下：

            <td class="label">List</td>
            <td>
                <select name="list" id="list" onchange="list()">
                    <option>---</option>
                 <option value='1'>1</option>
<option value='2'>2</option>
---other options---

我的代码是：

if br.form["list"] == "---":
    br.form["list"].value = "1"
    r = br.form["list"]
    print(r)

但是列表值仍会返回：

   ['---']

有什么想法吗？

Answer 1

您需要将值指定为列表：

if br.form["list"] == ["---"]:
    br.form["list"].value = ["1"]

根据mechanize - Forms documentation：

# Controls that represent lists (checkbox, select and radio lists) are
# ListControl instances.  Their values are sequences of list item names.
# They come in two flavours: single- and multiple-selection:
form["favorite_cheese"] = ["brie"]  # single
form["cheeses"] = ["parmesan", "leicester", "cheddar"]  # multi

机械化从下拉列表中选择

1 个答案: