无法使用python中的beautifulsoup获取div中的所有id标记和a/href标记

这是html代码：

<div class="main_class">
    <a id = "link_id" href = "link1"></a>
    <a id = "link_id" href = "link2"></a>
    <a id = "link_id" href = "link3"></a>
    <a id = "link_id" href = "link4"></a>
</div>

我尝试过其他一些方法，但无法在特定的

div

中获取所有

id

和

链接

links=soup.find（“div”，“class”：“main_class”}）.findChildren（“a”，“id”：“link_id”}）

>链接
[,
,
,
]

filtered = soup.find_all("div[class=main_class")
filtered = soup.find_all("div", {"id": "link_id"})
filtered = soup.find_all('id', href = True) # Returns extra links which are not in the specific div

>>> links
[<a href="link1" id="link_id"></a>,
 <a href="link2" id="link_id"></a>,
 <a href="link3" id="link_id"></a>,
 <a href="link4" id="link_id"></a>]