例如,此标记本身有一个字典:
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我想从这本词典中获取一些信息(来自“url_enconded_fmt_stream_map”键的url值)。但我不知道怎么做,即使我已经搜索了很多。
修改
标签未满,我不知道为什么(我直接从网站(YouTube)复制)。
按照Alex Hall的代码进行一些更改,我得到了这个结果:
代码:
with open('script.txt') as infile:
for _, __, obj in jsonfinder(infile.read(), json_only=True):
print(obj)
输出:
{}
{'allowfullscreen': 'true', 'bgcolor': '#000000', 'allowscriptaccess': 'always'}
{'player_fallback': ['É necessário usar um navegador com Adobe Flash Player ou HTML5 para reproduzir o vídeo. <a href="https://get.adobe.com/flashplayer/">Faça o download do Flash Player mais recente</a><a href="/html5">Saiba mais sobre como atualizar para um navegador com HTML5</a>']}
但即使搜索'allowfullscreen'键,也会返回KeyError。
答案 0 :(得分:1)
该值以JSON编码,因此可以使用库jsonfinder提取,例如像这样:
from jsonfinder import jsonfinder
with open('script.txt') as infile:
for _, __, obj in jsonfinder(infile.read(), json_only=True):
try:
print(obj['args']['url_encoded_fmt_stream_map'])
except KeyError:
pass