I am trying to create my own RDF module based on dbpedia in Chinese. In my dsl.py, we created something like: HasKeyword.relation = "rdfs:label" HasKeyword.language = "zh" However, when I created two RDF modules simultaneously in the constructor of main class: self.dbpedia = quepy.install("dbpedia") self.zhwiki = quepy.install("zhwiki") # Chinese version of dbpedia I found that the latter module that I created will always override the first one. In particular, the dsl.py for dbpedia look likes: HasKeyword.language = "en" And the variable "HasKeyword.language" will be overrided as "zh" Is there any good way to resolve it?