How to use the apkutils.dex.dexparser.DexFile function in apkutils

def _init_dex_files(self):
        self.dex_files = []
        try:
            with zipfile.ZipFile(self.apk_path, 'r') as z:
                for name in z.namelist():
                    data = z.read(name)
                    if name.startswith('classes') and name.endswith('.dex') \
                            and Magic(data).get_type() == 'dex':
                        dex_file = DexFile(data)
                        self.dex_files.append(dex_file)
        except Exception as ex:
            raise ex

def _init_dex_files(self):
        self.dex_files = []
        try:
            with apkfile.ZipFile(self.apk_path, 'r') as z:
                for name in z.namelist():
                    data = z.read(name)
                    if name.startswith('classes') and name.endswith('.dex') \
                            and Magic(data).get_type() == 'dex':
                        dex_file = DexFile(data)
                        self.dex_files.append(dex_file)
        except Exception as ex:
            raise ex