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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 default_repository(self):
 """Return dictionary with default repo name and url """

        default_dict_repo = {}
        for line in self.default_repositories_list.splitlines():
            line = line.lstrip()
            if not line.startswith("#"):
                if line.split()[0] in self.DEFAULT_REPOS_NAMES:
                    default_dict_repo[line.split()[0]] = line.split()[1]
                else:
                    print("\nslpkg: Error: Repository name '{0}' is not "
                          "default.\n              Please check file: "
                          "/etc/slpkg/default-repositories\n".format(
                              line.split()[0]))
                    raise SystemExit()
        return default_dict_repo