def _load_config_files(self):<EOL>
config_files = dict(self._iter_config_files())<EOL>if config_files[kinds.ENV][<NUM_LIT:0>:<NUM_LIT:1>] == [os.devnull]:<EOL><INDENT>logger.debug(<EOL>"<STR_LIT>"<EOL>"<STR_LIT>"<EOL>)<EOL>return<EOL><DEDENT>for variant, files in config_files.items():<EOL><INDENT>for fname in files:<EOL><INDENT>if self.load_only is not None and variant != self.load_only:<EOL><INDENT>logger.debug(<EOL>"<STR_LIT>", fname, variant<EOL>)<EOL>continue<EOL><DEDENT>parser = self._load_file(variant, fname)<EOL>self._parsers[variant].append((fname, parser))<EOL><DEDENT><DEDENT>
Loads configuration from configuration files