add common function to check request failure

deep_translator/deepl.py

@@ -17,7 +17,7 @@ from deep_translator.exceptions import (
     ServerException,
     TranslationNotFound,
 )
-from deep_translator.validate import is_empty, is_input_valid
+from deep_translator.validate import is_empty, is_input_valid, request_failed
 
 
 class DeeplTranslator(BaseTranslator):
@@ -85,7 +85,7 @@ class DeeplTranslator(BaseTranslator):
             # If the answer is not success, raise server exception.
             if response.status_code == 403:
                 raise AuthorizationException(self.api_key)
-            elif response.status_code != 200:
+            if request_failed(status_code=response.status_code):
                 raise ServerException(response.status_code)
             # Get the response and check is not empty.
             res = response.json()

deep_translator/google.py

@@ -16,7 +16,7 @@ from deep_translator.exceptions import (
     TooManyRequests,
     TranslationNotFound,
 )
-from deep_translator.validate import is_empty, is_input_valid
+from deep_translator.validate import is_empty, is_input_valid, request_failed
 
 
 class GoogleTranslator(BaseTranslator):
@@ -70,7 +70,7 @@ class GoogleTranslator(BaseTranslator):
             if response.status_code == 429:
                 raise TooManyRequests()
 
-            if response.status_code != 200:
+            if request_failed(status_code=response.status_code):
                 raise RequestError()
 
             soup = BeautifulSoup(response.text, "html.parser")

deep_translator/libre.py

@@ -20,7 +20,7 @@ from deep_translator.exceptions import (
     ServerException,
     TranslationNotFound,
 )
-from deep_translator.validate import is_empty, is_input_valid
+from deep_translator.validate import is_empty, is_input_valid, request_failed
 
 
 class LibreTranslator(BaseTranslator):
@@ -95,7 +95,7 @@ class LibreTranslator(BaseTranslator):
 
             if response.status_code == 403:
                 raise AuthorizationException(self.api_key)
-            elif response.status_code != 200:
+            elif request_failed(status_code=response.status_code):
                 raise ServerException(response.status_code)
             # Get the response and check is not empty.
             res = response.json()

deep_translator/linguee.py

@@ -19,7 +19,7 @@ from deep_translator.exceptions import (
     TooManyRequests,
     TranslationNotFound,
 )
-from deep_translator.validate import is_empty, is_input_valid
+from deep_translator.validate import is_empty, is_input_valid, request_failed
 
 
 class LingueeTranslator(BaseTranslator):
@@ -72,8 +72,9 @@ class LingueeTranslator(BaseTranslator):
             if response.status_code == 429:
                 raise TooManyRequests()
 
-            if response.status_code != 200:
+            if request_failed(status_code=response.status_code):
                 raise RequestError()
+
             soup = BeautifulSoup(response.text, "html.parser")
             elements = soup.find_all(self._element_tag, self._element_query)
             response.close()

deep_translator/mymemory.py

@@ -15,7 +15,7 @@ from deep_translator.exceptions import (
     TooManyRequests,
     TranslationNotFound,
 )
-from deep_translator.validate import is_empty, is_input_valid
+from deep_translator.validate import is_empty, is_input_valid, request_failed
 
 
 class MyMemoryTranslator(BaseTranslator):
@@ -71,7 +71,7 @@ class MyMemoryTranslator(BaseTranslator):
 
             if response.status_code == 429:
                 raise TooManyRequests()
-            if response.status_code != 200:
+            if request_failed(status_code=response.status_code):
                 raise RequestError()
 
             data = response.json()

deep_translator/papago.py

@@ -12,7 +12,7 @@ import requests
 from deep_translator.base import BaseTranslator
 from deep_translator.constants import BASE_URLS, PAPAGO_LANGUAGE_TO_CODE
 from deep_translator.exceptions import TranslationNotFound
-from deep_translator.validate import is_input_valid
+from deep_translator.validate import is_input_valid, request_failed
 
 
 class PapagoTranslator(BaseTranslator):
@@ -67,7 +67,7 @@ class PapagoTranslator(BaseTranslator):
             response = requests.post(
                 self._base_url, headers=headers, data=payload
             )
-            if response.status_code != 200:
+            if request_failed(status_code=response.status_code):
                 raise Exception(
                     f"Translation error! -> status code: {response.status_code}"
                 )

deep_translator/pons.py

@@ -19,7 +19,7 @@ from deep_translator.exceptions import (
     TooManyRequests,
     TranslationNotFound,
 )
-from deep_translator.validate import is_empty, is_input_valid
+from deep_translator.validate import is_empty, is_input_valid, request_failed
 
 
 class PonsTranslator(BaseTranslator):
@@ -71,7 +71,7 @@ class PonsTranslator(BaseTranslator):
             if response.status_code == 429:
                 raise TooManyRequests()
 
-            if response.status_code != 200:
+            if request_failed(status_code=response.status_code):
                 raise RequestError()
 
             soup = BeautifulSoup(response.text, "html.parser")

deep_translator/qcri.py

@@ -16,6 +16,7 @@ from deep_translator.exceptions import (
     ServerException,
     TranslationNotFound,
 )
+from deep_translator.validate import request_failed
 
 
 class QcriTranslator(BaseTranslator):
@@ -96,7 +97,7 @@ class QcriTranslator(BaseTranslator):
             raise ServerException(503)
 
         else:
-            if response.status_code != 200:
+            if request_failed(status_code=response.status_code):
                 ServerException(response.status_code)
             else:
                 res = response.json()

deep_translator/validate.py

@@ -9,6 +9,21 @@ def is_empty(text: str) -> bool:
     return text == ""
 
 
+def request_failed(status_code: int) -> bool:
+    """Check if a request has failed or not.
+    A request is considered successfull if the status code is in the 2** range.
+
+    Args:
+        status_code (int): status code of the request
+
+    Returns:
+        bool: indicates request failure
+    """
+    if status_code > 299 or status_code < 200:
+        return True
+    return False
+
+
 def is_input_valid(
     text: str, min_chars: int = 0, max_chars: Optional[int] = None
 ) -> bool:

deep_translator/yandex.py

@@ -18,7 +18,7 @@ from deep_translator.exceptions import (
     TooManyRequests,
     TranslationNotFound,
 )
-from deep_translator.validate import is_input_valid
+from deep_translator.validate import is_input_valid, request_failed
 
 
 class YandexTranslator(BaseTranslator):
@@ -75,7 +75,7 @@ class YandexTranslator(BaseTranslator):
         else:
             data = response.json()
 
-        if response.status_code != 200:
+        if request_failed(status_code=response.status_code):
             raise ServerException(response.status_code)
         return data.get("dirs")