最新亲测可用的免费google翻译api

google翻译的水平越来越高，用处还不少，每次通过访问translate.google.cn来复制粘贴觉得效率太慢。

官方的google翻译好像要收费，找了一圈google翻译的免费api，特别是github上面的，发现好些开源项目已经过时，因为google更新了ttk的token。

找了好些java语言发现不可用，最后发现这个python开源项目更新日期挺近的，亲测是可用，免费而且速度很快。

https://github.com/Saravananslb/py-googletranslation

这个开源项目要求依赖是 Python 3.6+ 。如果没安装的可以到这里下载： https://www.python.org/downloads/release/python-391/

。为了使用方便，安装了带pip管理工具的。

下载py-googletranslation，

$ pip install pygoogletranslation为了科学上网,原来开源项目默认的google.com是访问不了的，要做下面修改，或直接找到下载代码，把google.com修改为google.cn

>>> from googletrans import Translator
>>> translator = Translator(service_urls=['translate.google.cn',   ])

基础用法：

如果没有指定源语言，会自动侦测源语言

>>> from pygoogletranslation import Translator
>>> translator = Translator()
>>> translator.translate('Good Morning', dest='ta')
# <Translated src=ko dest=ta text=காலை வணக்கம். pronunciation=Good evening.>
>>> translator.translate('안녕하세요.', dest='ja')
# <Translated src=ko dest=ja text=こんにちは。 pronunciation=Kon'nichiwa.>
>>> translator.translate('veritas lux mea', src='la')
# <Translated src=la dest=en text=The truth is my light pronunciation=The truth is my light>

高级用法（批量）：

可以使用数组批量翻译，只是简单调用一个http session

>>> from pygoogletranslation import Translator
>>> translator = Translator()
>>> t = (translator.translate(["Good ' Morning", "India"], dest="ta"))
>>> for _t in t:
>>>     print(_t.text)
# காலை வணக்கம்
# இந்தியா

语言检测：

>>> from pygoogletranslation import Translator
>>> translator = Translator()
>>> translator.detect('காலை வணக்கம்,')
# <Detected lang=ta confidence=0.72041003>
>>> translator.detect('この文章は日本語で書かれました。')
# <Detected lang=ja confidence=0.64889508>
>>> translator.detect('This sentence is written in English.')
# <Detected lang=en confidence=0.22348526>
>>> translator.detect('Tiu frazo estas skribita en Esperanto.')
# <Detected lang=eo confidence=0.10538048>

翻译文档类型的（.doc, .docx, .pdf, .txt）：

>>> from pygoogletranslation import Translator
>>> translator = Translator()
>>> translator.bulktranslate('test.txt', dest="ta")
# <bulk translated text>
# for bulk translation, sometimes you might get an error with response
# code "429" - Too Many attempts.
# To overcome this error, add below parameter.
>>> translator = Translator(retry=NO_OF_ATTEMPTS, sleep=WAIT_SECONDS, retry_message=TRUE)
>>> translator.bulktranslate('test.txt', dest="ta")
# retry - no of attemps (default- 3 times)
# sleep - no of attempts after seconds (default- 5 seconds)
# retry_message - True - display retrying message (default- False)

调用python例子：调用google翻译demo

pygoogletranslation定义的语言列表

>>> from pygoogletranslation import Translator
>>> translator = Translator()
>>> translator.glanguage()
>>> {"sl": {"auto": "Detect language","af": "Afrikaans","sq": "Albanian","am": "Amharic","ar": "Arabic","hy": "Armenian","az": "Azerbaijani","eu": "Basque","be": "Belarusian","bn": "Bengali","bs": "Bosnian","bg": "Bulgarian","ca": "Catalan","ceb": "Cebuano","ny": "Chichewa","zh-CN": "Chinese","co": "Corsican","hr": "Croatian","cs": "Czech","da": "Danish","nl": "Dutch","en": "English","eo": "Esperanto","et": "Estonian","tl": "Filipino","fi": "Finnish","fr": "French","fy": "Frisian","gl": "Galician","ka": "Georgian","de": "German","el": "Greek","gu": "Gujarati","ht": "Haitian Creole","ha": "Hausa","haw": "Hawaiian","iw": "Hebrew","hi": "Hindi","hmn": "Hmong","hu": "Hungarian","is": "Icelandic","ig": "Igbo","id": "Indonesian","ga": "Irish","it": "Italian","ja": "Japanese","jw": "Javanese","kn": "Kannada","kk": "Kazakh","km": "Khmer","rw": "Kinyarwanda","ko": "Korean","ku": "Kurdish (Kurmanji)","ky": "Kyrgyz","lo": "Lao","la": "Latin","lv": "Latvian","lt": "Lithuanian","lb": "Luxembourgish","mk": "Macedonian","mg": "Malagasy","ms": "Malay","ml": "Malayalam","mt": "Maltese","mi": "Maori","mr": "Marathi","mn": "Mongolian","my": "Myanmar (Burmese)","ne": "Nepali","no": "Norwegian","or": "Odia (Oriya)","ps": "Pashto","fa": "Persian","pl": "Polish","pt": "Portuguese","pa": "Punjabi","ro": "Romanian","ru": "Russian","sm": "Samoan","gd": "Scots Gaelic","sr": "Serbian","st": "Sesotho","sn": "Shona","sd": "Sindhi","si": "Sinhala","sk": "Slovak","sl": "Slovenian","so": "Somali","es": "Spanish","su": "Sundanese","sw": "Swahili","sv": "Swedish","tg": "Tajik","ta": "Tamil","tt": "Tatar","te": "Telugu","th": "Thai","tr": "Turkish","tk": "Turkmen","uk": "Ukrainian","ur": "Urdu","ug": "Uyghur","uz": "Uzbek","vi": "Vietnamese","cy": "Welsh","xh": "Xhosa","yi": "Yiddish","yo": "Yoruba","zu": "Zulu"},"tl": {"af": "Afrikaans","sq": "Albanian","am": "Amharic","ar": "Arabic","hy": "Armenian","az": "Azerbaijani","eu": "Basque","be": "Belarusian","bn": "Bengali","bs": "Bosnian","bg": "Bulgarian","ca": "Catalan","ceb": "Cebuano","ny": "Chichewa","zh-CN": "Chinese (Simplified)","zh-TW": "Chinese (Traditional)","co": "Corsican","hr": "Croatian","cs": "Czech","da": "Danish","nl": "Dutch","en": "English","eo": "Esperanto","et": "Estonian","tl": "Filipino","fi": "Finnish","fr": "French","fy": "Frisian","gl": "Galician","ka": "Georgian","de": "German","el": "Greek","gu": "Gujarati","ht": "Haitian Creole","ha": "Hausa","haw": "Hawaiian","iw": "Hebrew","hi": "Hindi","hmn": "Hmong","hu": "Hungarian","is": "Icelandic","ig": "Igbo","id": "Indonesian","ga": "Irish","it": "Italian","ja": "Japanese","jw": "Javanese","kn": "Kannada","kk": "Kazakh","km": "Khmer","rw": "Kinyarwanda","ko": "Korean","ku": "Kurdish (Kurmanji)","ky": "Kyrgyz","lo": "Lao","la": "Latin","lv": "Latvian","lt": "Lithuanian","lb": "Luxembourgish","mk": "Macedonian","mg": "Malagasy","ms": "Malay","ml": "Malayalam","mt": "Maltese","mi": "Maori","mr": "Marathi","mn": "Mongolian","my": "Myanmar (Burmese)","ne": "Nepali","no": "Norwegian","or": "Odia (Oriya)","ps": "Pashto","fa": "Persian","pl": "Polish","pt": "Portuguese","pa": "Punjabi","ro": "Romanian","ru": "Russian","sm": "Samoan","gd": "Scots Gaelic","sr": "Serbian","st": "Sesotho","sn": "Shona","sd": "Sindhi","si": "Sinhala","sk": "Slovak","sl": "Slovenian","so": "Somali","es": "Spanish","su": "Sundanese","sw": "Swahili","sv": "Swedish","tg": "Tajik","ta": "Tamil","tt": "Tatar","te": "Telugu","th": "Thai","tr": "Turkish","tk": "Turkmen","uk": "Ukrainian","ur": "Urdu","ug": "Uyghur","uz": "Uzbek","vi": "Vietnamese","cy": "Welsh","xh": "Xhosa","yi": "Yiddish","yo": "Yoruba","zu": "Zulu"},"al": {}}

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