Python3在调用有道智云文本翻译API时出现的小问题解决办法？

目标：提交编程作业

主题：制作一个翻译器

问题：报错202

我的错误代码（省去软件主体部分，只保留了需要的部分）

import time
import requests

YOUDAO_URL = 'https://openapi.youdao.com/api'
APP_KEY = '应用ID'
APP_SECRET = '应用密钥'
#Get translate word
p=input('请输入翻译词或语句：')
#About language
to='zh-CHS'#目标中文
from='en'#起始英文

#各参数 input,salt,curtime,sha256(sign),v3(signType),zh-CHS(to),en(from),q
#以下计算方法全部根据有道技术文档
if int(len(q)) >20:
    input=str[0:9]+str(len(q))+str[10:19]
    #input=q前10个字符 + q长度 + q后10个字符
    salt = str(uuid.uuid1())
    curtime = str(int(time.time()))
    sha256=APP_KEY+input+salt+curtime+APP_SECRET
    #应用ID+input+salt+curtime+应用密钥
if int(len(q)) <=20:
    #input=q字符串（当q长度小于等于20）
    input=q
    salt = str(uuid.uuid1())
    curtime = str(int(time.time()))
    sha256=APP_KEY+input+salt+curtime+APP_SECRET
data={}
data['from']=a
data['to']=b
data['signType']='v3'
data['curtime']=curtime
data['appKey']=APP_KEY
data['q']=q.encode('utf-8')
data['salt']=salt
data['sign']=sha256
response = requests.post(url=YOUDAO_URL,data=data)
print(response.json())

语法没有错误！

appkey和appsecret不方便公示，已确认正确！

参考官网：有道智云

# -*- coding: utf-8 -*-
import sys
import uuid
import requests
import hashlib
import time
from imp import reload

import time

reload(sys)

YOUDAO_URL = 'https://openapi.youdao.com/api'
APP_KEY = '33a12299212fc28261c'
APP_SECRET = '9PmUgMkdlJM3fLsAC3JNc4rYGXn4EgdHzgHl'


def encrypt(signStr):
    hash_algorithm = hashlib.sha256()
    hash_algorithm.update(signStr.encode('utf-8'))
    return hash_algorithm.hexdigest()


def truncate(q):
    if q is None:
        return None
    size = len(q)
    return q if size <= 20 else q[0:10] + str(size) + q[size - 10:size]


def do_request(data):
    headers = {'Content-Type': 'application/x-www-form-urlencoded'}
    return requests.post(YOUDAO_URL, data=data, headers=headers)


def connect():
    q = input("待输入的文字: ")

    data = {}
    data['from'] = 'en'
    data['to'] = 'zh-CHS'
    data['signType'] = 'v3'
    curtime = str(int(time.time()))
    data['curtime'] = curtime
    salt = str(uuid.uuid1())
    print(q)
    signStr = APP_KEY + truncate(q) + salt + curtime + APP_SECRET
    sign = encrypt(signStr)
    data['appKey'] = APP_KEY
    data['q'] = q
    data['salt'] = salt
    data['sign'] = sign
    # data['vocabId'] = "您的用户词表ID"

    response = do_request(data)
    print(response.json())


if __name__ == '__main__':
    connect()


# 替换你的appid 和密钥就可以使用了，
# 你demo中，因为sign 这个值你只拼接但是未通过ha256加密

输入为p, 但你却又说是q, 费解...