free_google_translator.py

from googletrans import Translator
from google.cloud import translate_v2 as translate
from textblob import TextBlob


class CustomTranslator:
    def __init__(self, target='en'):
        self.target = target
        self.set_free_client()
        self.set_google_client()

    def set_free_client(self):
        self.free_client = Translator()

    def set_google_client(self):
        self.google_client = translate.Client()
        
    def detect_language(self, text):
        return TextBlob(text).detect_language()

    def free_translation(self, text):
        try:
            return self.free_client.translate(text, dest=self.target).text
        except:
            self.set_free_client()
            return self.free_client.translate(text, dest=self.target).text

    def google_translation(self, text):
        try:
            if isinstance(text, six.binary_type):
                text = text.decode('utf-8')
            return self.google_client.translate(text, target_language=self.target)['translatedText']
        except:
            self.set_google_client()
            if isinstance(text, six.binary_type):
                text = text.decode('utf-8')
            return self.google_client.translate(text, target_language=self.target)['translatedText']

    def get_translation(self, text):
        try:
            return self.free_translation(text)
        except:
            return self.google_translation(text)