根据多个列表中出现的单词进行关键字检查

Question

我有类似的字典：

countries = ["usa", "france", "japan", "china", "germany"]
fruits = ["mango", "apple", "passion-fruit", "durion", "bananna"]

cf_dict = {k:v for k,v in zip(["countries", "fruits"], [countries, fruits])}

，我还有一个类似于以下字符串的列表：

docs = ["mango is a fruit that is very different from Apple","I like to travel, last year I was in Germany but I like France.it was lovely"]

我想检查docs，看看是否每个字符串都包含cf_dict中任何列表（cf_dict的值是列表）中的关键字any，如果存在，则返回该字符串（文档中的字符串）的相应key（基于值）作为输出。

例如，如果我检查列表docs，则输出将为[fruits，countries]

与此answer类似，但是它只检查一个列表，但是，我想检查多个列表。

Answer 1

如果字符串与多个列表中的值匹配（例如'apple grows in USA'应该映射到{'fruits', 'countries'}），则以下内容将返回集合的字典。

print({s: {k for k, l in cf_dict.items() for w in l if w in s.lower()} for s in docs})

这将输出：

{'mango is a fruit that is very different from Apple': {'fruits'}, 'I like to travel, last year I was in Germany but I like France.it was lovely': {'countries'}}