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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def search_subreddit(self, name=None):
 """ Open a prompt to search the given subreddit """

        name = name or self.content.name

        query = self.term.prompt_input('Search {0}: '.format(name))
        if not query:
            return

        with self.term.loader('Searching'):
            self.content = SubredditContent.from_name(
                self.reddit, name, self.term.loader, query=query)
        if not self.term.loader.exception:
            self.nav = Navigator(self.content.get)