Python BeautifulSoup html5lib mix似乎正在删除for循环中的所有其他项

Question

我是python新手，但到目前为止我非常喜欢这种语言

我一直在创建一系列复杂的html5元素，并使用html5lib模块

当我浏览段落中的元素时，我可以很好地将它们打印出来，但当我尝试使用bs4的insert方法时，我只得到其他元素的输出，我不知道为什么

我的python：

i = 0
    for gallery_elem in gallery_header_next_sibling:
        if ( gallery_elem.name.lower() == 'img' ):
            if ( i == 0 ):
                new_gallery = soup.new_tag( "div" )
                new_gallery[ "class" ] = "gallery"

            new_gallery_elem = soup.new_tag( "figure" )

            if ( gallery_elem.has_attr( "alt" ) ):
                new_gallery_cap = soup.new_tag( "figcaption" )
                new_gallery_cap.string = gallery_elem[ "alt" ]
                new_gallery_elem.insert( 2, new_gallery_cap )

            if ( gallery_elem.has_attr( "title" ) ):
                new_gallery_attribution = soup.new_tag( "dl" )
                new_gallery_attribution_dt = soup.new_tag( "dt" )
                new_gallery_attribution_dt.string = "Image owner:"
                new_gallery_attribution_dd = soup.new_tag( "dd" )
                new_gallery_attribution_dd.string = gallery_elem[ "title" ]
                new_gallery_attribution.insert( 0, new_gallery_attribution_dt )
                new_gallery_attribution.insert( 1, new_gallery_attribution_dd )

        new_gallery_elem.insert( 1, new_gallery_attribution )
        new_gallery_elem.insert( 1, gallery_elem )
        i = i + 1

    new_gallery_elem.insert( 1, gallery_elem )

HTML

<img alt="Caption One." src="img/orange.jpg" title="Attribution One."/>
<img alt="Caption Two." src="img/red.jpg" title="Attribution Two."/>
<img alt="Caption Three." src="img/urban.jpg" title="Attribution Three."/>
<img alt="Caption Four." src="img/brolly.jpg" title="Attribution Four."/>
<img alt="Caption Five." src="img/tomy.jpg" title="Attribution Five."/>

输出：

<figure><figcaption>Caption One.</figcaption><img alt="Caption One." src="img/orange.jpg" title="Attribution One."/><dl><dt>Image owner:</dt><dd>Attribution One.</dd></dl></figure>
<figure><figcaption>Caption Three.</figcaption><img alt="Caption Three." src="img/urban.jpg" title="Attribution Three."/><dl><dt>Image owner:</dt><dd>Attribution Three.</dd></dl></figure>
<figure><figcaption>Caption Five.</figcaption><img alt="Caption Five." src="img/tomy.jpg" title="Attribution Five."/><dl><dt>Image owner:</dt><dd>Attribution Five.</dd></dl></figure>

如果我拔出下面的一行，我会得到所有的五个元素。有人知道我做错了什么吗

new_gallery_elem.insert( 1, gallery_elem )

Answer 1

因此，经过一些实验后，我发现如果我将所需的元素存储在一个列表中，然后从列表中检索它们，而不是试图编辑“现场汤”，那么问题就迎刃而解了

一旦创建并存储了这些对象，我就可以将它们添加回先前创建并插入到soup中的父元素中

我希望这能解决其他人过早脱发的问题