python中的回調函數

def chunks_process(chunks, pos, folder_name, whole_text):
    r = sr.Recognizer()
    for i in range(pos, len(chunks)):
        chunk_filename = os.path.join(folder_name, f"chunk{i}.wav")
        chunks[i].export(chunk_filename, format="wav")
        with sr.AudioFile(chunk_filename) as source:
            audio_listened = r.record(source)
            try:
                text = r.recognize_google(audio_listened, language='vi-VN')
            except:
                chunks_process(chunks, i, folder_name, whole_text)
            else:
                text = f"{text.capitalize()}. "
                print(chunk_filename, ":", text)
                whole_text += text
        
    return whole_text

每當r.recognize_google（）api調用在特定位置失敗時，我想回調chunks_process（）函數。

我有一個問題，它在完成數組（塊）的結束索引后重復for循環。

我不知道如何解決這個問題。