使用Python实现谷歌批量翻译

本文来自我的简书

链接：https://www.jianshu.com/p/1e7c13d074ff

google批量翻译

使用python3编写

优点：Google 翻译是翻译的首选，特别是在学术领域，准确率比其他翻译要高，传统的一些调用谷歌翻译API的方法容易失效（or 被封），本脚本速度快，使用简单，没有稳定性问题，我认为是目前最好的调用谷歌翻译批量翻译的方法。

需要使用到的包

PyExecJS

requests（anaconda3自带无需安装）

step1

创建一个python文件，这里我命名为Pytrans.py，文件代码如下，相当于一个Pytrans的模块用于后续调用

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import execjs  # pip install PyExecJS
  
class Pytrans():  
    def __init__(self):  
        self.ctx = execjs.compile(""" 
        function TL(a) { 
        var k = ""; 
        var b = 406644; 
        var b1 = 3293161072;       
        var jd = "."; 
        var $b = "+-a^+6"; 
        var Zb = "+-3^+b+-f"; 
     
        for (var e = [], f = 0, g = 0; g < a.length; g++) { 
            var m = a.charCodeAt(g); 
            128 > m ? e[f++] = m : (2048 > m ? e[f++] = m >> 6 | 192 : (55296 == (m & 64512) && g + 1 < a.length && 56320 == (a.charCodeAt(g + 1) & 64512) ? (m = 65536 + ((m & 1023) << 10) + (a.charCodeAt(++g) & 1023), 
            e[f++] = m >> 18 | 240, 
            e[f++] = m >> 12 & 63 | 128) : e[f++] = m >> 12 | 224, 
            e[f++] = m >> 6 & 63 | 128), 
            e[f++] = m & 63 | 128) 
        } 
        a = b; 
        for (f = 0; f < e.length; f++) a += e[f], 
        a = RL(a, $b); 
        a = RL(a, Zb); 
        a ^= b1 || 0; 
        0 > a && (a = (a & 2147483647) + 2147483648); 
        a %= 1E6; 
        return a.toString() + jd + (a ^ b) 
    }; 
     
    function RL(a, b) { 
        var t = "a"; 
        var Yb = "+"; 
        for (var c = 0; c < b.length - 2; c += 3) { 
            var d = b.charAt(c + 2), 
            d = d >= t ? d.charCodeAt(0) - 87 : Number(d), 
            d = b.charAt(c + 1) == Yb ? a >>> d: a << d; 
            a = b.charAt(c) == Yb ? a + d & 4294967295 : a ^ d 
        } 
        return a 
    } 
    """)  # 获取代码编译完成后的对象     
    def cd_num(self,text):  
        return self.ctx.call("TL",text)

step2

在同一个文件目录下创建一个input.txt文件，并将需要翻译的文本复制到该文件中，以Enter键换行分隔。
新建一个python文件，这里命名为google_translation.py，导入step1中的模块，文件代码如下，然后运行即可得到翻译结果，将结果粘贴到excel，即可看到原文与翻译对应的两列表格。

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
'google translation'

__author__ = 'shixq'

from Pytrans import *
import requests

# google translation
def google_translate(original_text):
    
    js = Pytrans()
    tk = js.cd_num(original_text)

    if len(original_text) > 4950:      
        print("Too long, string to translate must be less than 5000 characters long.")      
        return      
    param = {'tk': tk, 'q': original_text}    
    result = requests.get("""http://translate.google.cn/translate_a/single?client=t&sl=en 
        &tl=zh-CN&hl=zh-CN&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw&dt=rm&dt=ss 
        &dt=t&ie=UTF-8&oe=UTF-8&clearbtn=1&otf=1&pc=1&srcrom=0&ssel=0&tsel=0&kc=2""", params=param)    
    trans = result.json()[0]
    ret = ''
    for i in range(len(trans)):
        line = trans[i][0]
        if line != None:
            ret += trans[i][0]

    return ret

a= google_translate("hello，Input file will be translated, please be patient")
print(a)

trasnlation_list = []
translate_file = open('output.txt', "w", encoding='utf-8')
with open('input.txt','r') as f:
    for element in f:
        trasnlation_list.append(element.strip())
# print(trasnlation_list_list)
count = 0
for tl in trasnlation_list:
    translation = google_translate(tl)
    translate_file.write(tl + '\t' + translation + '\n')
    count += 1
    print('complete', '%.1f%%'%((count/len(trasnlation_list))*100))