@classmethod<EOL><INDENT>def visible_suite_paths(cls, paths=None):<DEDENT>
suite_paths = []<EOL>if paths is None:<EOL><INDENT>paths = os.getenv("<STR_LIT>", "<STR_LIT>").split(os.pathsep)<EOL><DEDENT>for path in paths:<EOL><INDENT>if path and os.path.isdir(path):<EOL><INDENT>path_ = os.path.dirname(path)<EOL>filepath = os.path.join(path_, "<STR_LIT>")<EOL>if os.path.isfile(filepath):<EOL><INDENT>suite_paths.append(path_)<EOL><DEDENT><DEDENT><DEDENT>return suite_paths<EOL>
Get a list of paths to suites that are visible on $PATH.

        Returns:
            List of str.