做一个英译中的命令行工具

用python实现，调用了百度翻译和金山词霸的接口

baidu_translate.py
百度翻译实现

# -*- coding:utf-8 -*-

import time
from urllib import parse
import hashlib
import requests


class BaiduTranslate(object):

    def __init__(self):
        self.appid = '百度开发者appid'
        self.key = '百度开发者appkey'
        self.url = 'http://api.fanyi.baidu.com/api/trans/vip/translate'
        self.headers = {
            'Content-Type': 'application/x-www-from-urlencoded'        
        }

    def get_sign(self, q, salt):
        
        str1 = self.appid + q + salt + self.key
        sign = hashlib.md5(str1.encode('utf-8')).hexdigest()

        return sign

    def do_translate(self, q, type_=0):
        """q: 待翻译字符；
        type_: 翻译类型。0 表示英文转中文，1 表示中文转英文, 2 表示自动选择"""

        lang_list = [('en', 'zh'), ('zh', 'en'), ('auto', 'auto')]
        from_lang, to_lang = lang_list[type_]
        
        salt = str(round(time.time()))
        sign = self.get_sign(q, salt)
        params = {
            'q': q,
            'from': from_lang,
            'to': to_lang,
            'appid': self.appid,
            'salt': salt,
            'sign': sign
        }

        result = self.send_req(self.url, params)
        translate_result = self.process(result)

        return translate_result

    @staticmethod
    def process(result_json):

        ret = result_json
        if 'error_code' not in result_json:
            result = result_json['trans_result']
            ret = result[0]['dst']

        return ret

    def send_req(self, url, params):
        """发送请求，返回结果 json"""
        req = requests.post(url, params=params, headers=self.headers)
        res = req.json()

        return res


if __name__ == '__main__':

    word = 'tear'
    type_ = 0
    tl = BaiduTranslate()
    data = tl.do_translate(word, type_)
    print(data)

jinshan_translate.py
金山词霸接口实现

# -*- coding:utf-8 -*-

"""
使用金山词霸接口实现翻译
"""

import requests
from urllib import parse


class JinshanTranslate(object):

    def __init__(self):
        self.base_url = 'https://dict-mobile.iciba.com/interface/index.php'
        self.params = {
            'c': 'word',
            'm': 'getsuggest',
            'is_need_mean': 0
        }

    def do_translate(self, q, type_=None):
        """q 是待翻译的词语，可以是英语也可以是中文。
        type_ 没有用，是为了跟百度的翻译接口保持一致"""

        self.params['word'] = q
        url = self.base_url + '?' + parse.urlencode(self.params)
        req = requests.get(url)
        res = req.json()
        ret = '(无结果)'
        if res['status'] != 1:
            ret = res
        elif res['message']:
            key = res['message'][0]['key']
            paraphrase = res['message'][0]['paraphrase']
            if key != key:
                ret = f'({key}) {paraphrase}'
            else:
                ret = paraphrase

        return ret

if __name__ == '__main__':

    translator = JinsanTranslate()
    result = translator.do_translate('tear')
    print(result)

整合两个，以实现同时获取两个接口的翻译

translator.py

# -*- coding:utf-8 -*-

import os
import sys
from baidu_translate import BaiduTranslate
from jinshan_translate import JinshanTranslate


class Translation(object):

    def __init__(self, translate_object):
        self.translator = translate_object()

    def translate(self, q, type_=0):
        """Call do_translate method"""

        ret = self.translator.do_translate(q, type_)
        return ret


if __name__ == '__main__':  

    argvs = sys.argv
    word = ''
    type_ = 0
    if len(argvs) < 2:
        print('参数不足，需要输入待翻译的字符')
    elif len(argvs) == 2:
        word = argvs[1]
    else:
        word, type_ = argvs[1:3]
        type_ = int(type_)

    t1 = Translation(BaiduTranslate)
    data1 = t1.translate(word, type_)

    # 保存到本地文件
    log_file_path = os.path.join(os.path.dirname(sys.argv[0]), 'query_log.log')
    log_file = open(log_file_path, 'a', encoding='utf-8')
    log_file.write('
')
    log_file.write('-'*60)
    print(f'待翻译词语： {word}')
    print()
    print(f'百度翻译结果： {data1}')
    log_file.write(f'
{word}: {data1}
')
    log_file.flush()
    t2 = Translation(JinshanTranslate)
    data2 = t2.translate(word)
    print(f'金山词霸结果：{data2}')
    log_file.write(f'{word}: {data2}')
    log_file.close()

使用命令：

# python translator.py文件路径 待翻译单词
# 如下：
python3 /mnt/e/temp/Translation/translator.py tear

为前面的命令设置一个别名，编辑 ~/.bashrc 文件，添加

alias trans='python3 /mnt/e/code/python/Translation/translator.py'

执行 source ~/.bashrc 使其生效，就可以使用 trans 单词 的格式来执行翻译，如下：

trans tear

结果如下：