python - 如何在Python和beautifulsoup中从CDATA中提取数据？

Question

我想从 cd 数据中提取 post_id

<script type='text/javascript' data-cfasync='false'>
  //<![CDATA[
    _SHR_SETTINGS = {"endpoints":{"local_recs_url":"https:\/\/klaudynahebda.pl\/wp-admin\/admin-ajax.php?action=shareaholic_permalink_related"},"url_components":{"year":"2018","monthnum":"06","day":"19","post_id":"21132","postname":"letnie-warsztaty-ziolowo-kosmetyczne-7-9lipiec","author":"admin"}};
  //]]>
</script>

我能够获取整个 CData，但不知道下一步该做什么？

Answer 1

如果您只需要post_id，请尝试使用regex。

例如:

import re
s = """<script type='text/javascript' data-cfasync='false'>
  //<![CDATA[
    _SHR_SETTINGS = {"endpoints":{"local_recs_url":"https:\/\/klaudynahebda.pl\/wp-admin\/admin-ajax.php?action=shareaholic_permalink_related"},"url_components":{"year":"2018","monthnum":"06","day":"19","post_id":"21132","postname":"letnie-warsztaty-ziolowo-kosmetyczne-7-9lipiec","author":"admin"}};
  //]]>
</script>"""
m = re.search(r'(?<="post_id":\")(?P<post_id>.*?)(?=\",\")', s)
if m:
    print(m.group('post_id'))

输出:

21132