added class properties for reusability

deep_translator/base.py

@@ -42,6 +42,22 @@ class BaseTranslator(ABC):
         self.payload_key = payload_key
         super().__init__()
 
+    @property
+    def source(self):
+        return self._source
+
+    @source.setter
+    def source(self, lang):
+        self._source = lang
+
+    @property
+    def target(self):
+        return self._target
+
+    @target.setter
+    def target(self, lang):
+        self._target = lang
+
     def _type(self):
         return self.__class__.__name__
 

deep_translator/google.py

@@ -118,5 +118,8 @@ class GoogleTranslator(BaseTranslator):
 
 
 if __name__ == "__main__":
-    t = GoogleTranslator().translate("hallo welt")
-    print("translation: ", t)
+    trans = GoogleTranslator(source='auto', target='de')
+    res = trans.translate("cute")
+    print("translation: ", res)
+    trans.target = "fr"
+    print(f"changed target to: {trans.target} => translation changed: {trans.translate('cute')}")