Learn what you encountered in the translation of the reptile Youdao

import urllib.request
import urllib.parse
import json
#from tkinter import *

'''root =Tk()
root.wm_attributes('-topmost',1)
root.geometry('+1000+40')
root.minsize(300,200)'''

fanyi = input('Enter what you want to translate:')

url = "http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule&sessionFrom="
#url? There is an _o in front of it. After deleting it, the errorCode=50 in the response will be resolved.

head = {}
head['User-Agent']='Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36]'

data = {}
data['i']=fanyi
data['from']='AUTO'
data ['to'] = 'AUTO'
data['smartresult']='dict'
data['client']='fanyideskweb'
data['salt']='1507343425426'
data['sign']='0df813336ad806fbaa2e0120dddb1d02'
data['doctype']='json'
data['version']='2.1'
data['keyfrom']='fanyi.web'
data['action']='FY_BY_CLICKBUTTION'
data['typoResult']='true'

data = urllib.parse.urlencode(data).encode('utf-8')
response = urllib.request.urlopen(url,data)
html = response.read().decode('utf-8')
print (html)
target = json.loads(html)
result = target['translateResult'][0][0]['tgt']
print (result)

Previously, errorCode=50 was displayed at print(response), but after Baidu heard that it was a problem with encrypted salt, I searched for the algorithm of salt and sign variables, but it still failed.

After it came to an end, I found out yesterday that the fish C forum thought that netizens had made a tk desktop translation crawler. After checking the source code, I found that I just removed the _o in the url, and it could be used.