WIP: Use new HTTP errors instead of entity errors

src/caosdb/connection/connection.py

@@ -33,10 +33,13 @@ from errno import EPIPE as BrokenPipe
 from socket import error as SocketError
 
 from caosdb.configuration import get_config
-from caosdb.exceptions import (AuthorizationException, CaosDBException,
-                               ClientErrorException, ConfigurationException,
-                               ConnectionException, EntityDoesNotExistError,
-                               LoginFailedException, ServerErrorException,
+from caosdb.exceptions import (CaosDBException, ClientErrorException,
+                               ConfigurationException,
+                               ConnectionException,
+                               HTTPAuthorizationException,
+                               LoginFailedException,
+                               ResourceNotFoundException,
+                               ServerErrorException,
                                URITooLongException)
 from caosdb.version import version
 from pkg_resources import resource_filename
@@ -88,7 +91,8 @@ class _DefaultCaosDBServerConnection(CaosDBServerConnection):
     """
 
     def __init__(self):
-        self._useragent = ("caosdb-pylib/{version} - {implementation}".format(version=version, implementation=type(self).__name__))
+        self._useragent = ("caosdb-pylib/{version} - {implementation}".format(
+            version=version, implementation=type(self).__name__))
         self._http_con = None
         self._base_path = None
 
@@ -397,11 +401,11 @@ def _handle_response_status(http_response):
             "Request failed. The response returned with status "
             "{}.".format(status))
     elif status == 403:
-        raise AuthorizationException(
+        raise HTTPAuthorizationException(
             "Request failed. The response returned with status "
             "{}.".format(status))
     elif status == 404:
-        raise EntityDoesNotExistError("This entity does not exist.")
+        raise ResourceNotFoundException("This entity does not exist.")
     elif status in (413, 414):
         raise URITooLongException(
             "Request failed. The response returned with status "
@@ -548,8 +552,8 @@ class _Connection(object):  # pylint: disable=useless-object-inheritance
             uri_segments.extend(path.split("/"))
 
             return self.retrieve(entity_uri_segments=uri_segments)
-        except EntityDoesNotExistError:
-            raise EntityDoesNotExistError("This file does not exist.")
+        except ResourceNotFoundException:
+            raise ResourceNotFoundException("This file does not exist.")
 
     def _login(self):
         self._authenticator.login()