Workaround for RarFile.read() with certain unrar versions

rar.py

# coding=utf-8


from rarfile import RarFile as _RarFile, UNRAR_TOOL, ORIG_OPEN_ARGS as OPEN_ARGS, custom_popen, check_returncode, \
    XTempFile, add_password_arg


class RarFile(_RarFile):
    def read(self, fname, psw=None):
        """
        read specific content of rarfile without parsing
        :param fname:
        :param psw:
        :return:
        """
        cmd = [UNRAR_TOOL] + list(OPEN_ARGS)
        add_password_arg(cmd, self._password)

        with XTempFile(self._rarfile) as rf:
            p = custom_popen(cmd + [rf, fname])
            output = p.communicate()[0]
            check_returncode(p, output)

            return output