python - 从美丽的汤中获取标签'a'

Question

我有一个 html 页面作为汤“a”。在那个页面上，我有兴趣在包含文本“AFT”（不区分大小写）的标签下找到 hreff。在这样做时：

>>> rows = a.findAll('span', attrs={'class': 'views-field views-field-title'})

输出是：

[<span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201030-next-issuance-btfs" hreflang="en">30 October 2020: AFT’s next issuance of BTFs: Monday 02 November 2020 </a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201030-next-issuance-oats" hreflang="en">30 October 2020: BFT’s next issuance of long-term OATs: Thursday 05 November 2020</a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201026-issuance-btfs" hreflang="en">26 October 2020: AFT's issuance: 5.289 billion euros of BTFs</a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201023-next-issuance-btfs" hreflang="en">23 October 2020: AFT’s next issuance of BTFs: Monday 26 October 2020 </a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201019-issuance-btfs" hreflang="en">19 October 2020: AFT's issuance: 5.489 billion euros of BTFs</a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201016-next-issuance-btfs" hreflang="en">16 October 2020: AFT’s next issuance of BTFs: Monday 19 October 2020 </a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201015-next-issuance-inflation-indexed-oats" hreflang="en">15 October 2020: AFT’s issuance: 1.000 billion euros of inflation-indexed OATs</a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201015-issuance-oats" hreflang="en">15 October 2020: AFT’s issuance: 7.240 billion euros of medium-term OATs</a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201012-issuance-btfs" hreflang="en">12 October 2020: AFT's issuance: 5.288 billion euros of BTFs</a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201009-next-issuance-indexed-oats" hreflang="en">09 October 2020: AFT’s next issuance of inflation-indexed OATs: Thursday 15 October 2020</a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201009-next-issuance-btfs" hreflang="en">09 October 2020: AFT’s next issuance of BTFs: Monday 12 October 2020 </a>
</span></span>, <span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201009-next-issuance-oats" hreflang="en">09 October 2020: AFT’s next issuance of medium-term OATs: Thursday 15 October 2020</a>
</span></span>]

所以从上面我想要除了this（列表的第二个元素）内的所有hreff，因为它不包含'AFT'

<span class="views-field views-field-title"><span class="field-content">
<a href="/index.php/en/publications/communiques-presse/20201030-next-issuance-oats" hreflang="en">30 October 2020: BFT’s next issuance of long-term OATs: Thursday 05 November 2020</a>
</span></span>

rows有人可以帮助从或可能从中提取 hreff 作为列表a吗？谢谢。

标签： pythonhtmlbeautifulsoup

Answer 1

href = [row.find('a').get('href') for row in rows if 'AFT' in row.text]
print(href)

输出

['/index.php/en/publications/communiques-presse/20201030-next-issuance-btfs',
 '/index.php/en/publications/communiques-presse/20201026-issuance-btfs',
 '/index.php/en/publications/communiques-presse/20201023-next-issuance-btfs',
 '/index.php/en/publications/communiques-presse/20201019-issuance-btfs',
 '/index.php/en/publications/communiques-presse/20201016-next-issuance-btfs',
 '/index.php/en/publications/communiques-presse/20201015-next-issuance-inflation-indexed-oats',
 '/index.php/en/publications/communiques-presse/20201015-issuance-oats',
 '/index.php/en/publications/communiques-presse/20201012-issuance-btfs',
 '/index.php/en/publications/communiques-presse/20201009-next-issuance-indexed-oats',
 '/index.php/en/publications/communiques-presse/20201009-next-issuance-btfs',
 '/index.php/en/publications/communiques-presse/20201009-next-issuance-oats']