python函数调用无效

Question

问题遇到的现象和发生背景

我把科大讯飞api的示例弄成了函数，在普通python文件里可以正常使用，但是在flask里就既不执行也不报错。而且我是用微信小程序做的前端，在flask里调用时前端会得到一串html的乱码

问题相关代码，请勿粘贴截图

import websocket
import datetime
import hashlib
import base64
import hmac
import json
from urllib.parse import urlencode
import time
import ssl
from wsgiref.handlers import format_date_time
from datetime import datetime
from time import mktime
import _thread as thread
import os


#STATUS_FIRST_FRAME = 0  # 第一帧的标识
#STATUS_CONTINUE_FRAME = 1  # 中间帧标识
#STATUS_LAST_FRAME = 2  # 最后一帧的标识

def getaudio(text):
    class Ws_Param(object):
        # 初始化
        def __init__(self, APPID, APIKey, APISecret, Text):
            self.APPID = APPID
            self.APIKey = APIKey
            self.APISecret = APISecret
            self.Text = Text
            # 公共参数(common)
            self.CommonArgs = {"app_id": self.APPID}
            # 业务参数(business)，更多个性化参数可在官网查看
            self.BusinessArgs = {"aue": "lame", "auf": "audio/L16;rate=16000", "vcn": "xiaoyan", "tte": "utf8"}
            self.Data = {"status": 2, "text": str(base64.b64encode(self.Text.encode('utf-8')), "UTF8")}
            #使用小语种须使用以下方式，此处的unicode指的是 utf16小端的编码方式，即"UTF-16LE"”
            #self.Data = {"status": 2, "text": str(base64.b64encode(self.Text.encode('utf-16')), "UTF8")}

        # 生成url
        def create_url(self):
            url = 'wss://tts-api.xfyun.cn/v2/tts'
            # 生成RFC1123格式的时间戳
            now = datetime.now()
            date = format_date_time(mktime(now.timetuple()))

            # 拼接字符串
            signature_origin = "host: " + "ws-api.xfyun.cn" + "\n"
            signature_origin += "date: " + date + "\n"
            signature_origin += "GET " + "/v2/tts " + "HTTP/1.1"
            # 进行hmac-sha256进行加密
            signature_sha = hmac.new(self.APISecret.encode('utf-8'), signature_origin.encode('utf-8'),
                                     digestmod=hashlib.sha256).digest()
            signature_sha = base64.b64encode(signature_sha).decode(encoding='utf-8')

            authorization_origin = "api_key=\"%s\", algorithm=\"%s\", headers=\"%s\", signature=\"%s\"" % (
                self.APIKey, "hmac-sha256", "host date request-line", signature_sha)
            authorization = base64.b64encode(authorization_origin.encode('utf-8')).decode(encoding='utf-8')
            # 将请求的鉴权参数组合为字典
            v = {
                "authorization": authorization,
                "date": date,
                "host": "ws-api.xfyun.cn"
            }
            # 拼接鉴权参数，生成url
            url = url + '?' + urlencode(v)
            # print("date: ",date)
            # print("v: ",v)
            # 此处打印出建立连接时候的url,参考本demo的时候可取消上方打印的注释，比对相同参数时生成的url与自己代码生成的url是否一致
            # print('websocket url :', url)
            return url

    def on_message(ws, message):
        try:
            message =json.loads(message)
            code = message["code"]
            sid = message["sid"]
            audio = message["data"]["audio"]
            audio = base64.b64decode(audio)
            status = message["data"]["status"]
            print(message)
            if status == 2:
                print("ws is closed")
                ws.close()
            if code != 0:
                errMsg = message["message"]
                print("sid:%s call error:%s code is:%s" % (sid, errMsg, code))
            else:

                with open('D://demo.MP3', 'ab') as f:
                    f.write(audio)

        except Exception as e:
            print("receive msg,but parse exception:", e)



    # 收到websocket错误的处理
    def on_error(ws, error):
        print("### error:", error)


    # 收到websocket关闭的处理
    def on_close(ws):
        print("### closed ###")


    # 收到websocket连接建立的处理
    def on_open(ws):
        def run(*args):
            d = {"common": wsParam.CommonArgs,
                 "business": wsParam.BusinessArgs,
                 "data": wsParam.Data,
                 }
            d = json.dumps(d)
            print("------>开始发送文本数据")
            ws.send(d)
            if os.path.exists('D://demo.MP3'):
                os.remove('D://demo.MP3')

        thread.start_new_thread(run, ())


 #   if __name__ == "__main__":
        # 测试时候在此处正确填写相关信息即可运行
    wsParam = Ws_Param(APPID='8065e4c5', APISecret='N2JlNTIwY2RkZGJhZTc1MGFjMjExYjVj',
                           APIKey='60b542492df69684bc71c1197c4a3ae7',
                           Text=text)
    websocket.enableTrace(False)
    wsUrl = wsParam.create_url()
    ws = websocket.WebSocketApp(wsUrl, on_message=on_message, on_error=on_error, on_close=on_close)
    ws.on_open = on_open
    ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})

运行结果及报错内容

我的解答思路和尝试过的方法

我想要达到的结果

Answer 1

报什么错？小程序开发工具的而网络选项卡可以看到服务器返回的内容，flask控制台也有错误输出