Handle response code 500 (#3)

Author: ptoews

pons/client.py

@@ -2,7 +2,7 @@
 
 import requests
 
-from .errors import DictionaryNotFound, LimitReached, Unauthorized
+from .errors import DictionaryNotFound, LimitReached, Unauthorized, InternalServerError
 from .models import Dictionary, Hit, Language, create_hit
 
 __all__ = ("Client",)
@@ -30,6 +30,8 @@ def request(
             raise Unauthorized()
         if status == 404:
             raise DictionaryNotFound()
+        if status == 500:
+            raise InternalServerError()
         if status == 503:
             raise LimitReached()
         return res.json()

pons/errors.py

@@ -15,3 +15,7 @@ class LimitReached(PONSException):
 
 class Unauthorized(PONSException):
     """The supplied credentials could not be verified or the access to a dictionary is not allowed."""
+
+
+class InternalServerError(PONSException):
+    """An internal server error has occurred."""