api, inbound_email: Fix mypy 1.15 errors

swh/web/api/throttling.py

@@ -95,9 +95,9 @@ class SwhWebRateThrottle(ScopedRateThrottle):
     def allow_request(self, request: Request, view: APIView) -> bool:
         # class based view case
         if not self.scope:
-            default_scope = getattr(view, self.scope_attr, None)
+            default_scope = getattr(view, self.scope_attr, "")
             request_allowed = None
-            if default_scope is not None:
+            if default_scope:
                 # check if there is a specific rate limiting associated
                 # to the request type
                 assert request.method is not None

swh/web/inbound_email/handle_message.py

@@ -20,7 +20,7 @@ class MessageHandler:
     def __init__(self, raw_message: bytes, sender: Optional[Type] = None):
         try:
             self.message = email.message_from_bytes(
-                raw_message, policy=email.policy.default
+                raw_message, policy=email.policy.default  # type: ignore[arg-type]
             )
         except Exception as exc:
             sentry_capture_exception(exc)

swh/web/inbound_email/tests/test_utils.py

@@ -154,7 +154,7 @@ def test_recipient_matches_casemapping():
 )
 def test_recipient_matches_real_world(filename: str, recipient: str, extension: str):
     with open_binary("swh.web.inbound_email.tests.resources", filename) as f:
-        message = email.message_from_binary_file(f, policy=email.policy.default)
+        message = email.message_from_binary_file(f, policy=email.policy.default)  # type: ignore[arg-type]
 
     assert isinstance(message, EmailMessage)
 
@@ -400,7 +400,7 @@ def test_get_message_plaintext(
     filename: str, expected_parts: List[str], expected_absent: List[str]
 ):
     with open_binary("swh.web.inbound_email.tests.resources", filename) as f:
-        message = email.message_from_binary_file(f, policy=email.policy.default)
+        message = email.message_from_binary_file(f, policy=email.policy.default)  # type: ignore[arg-type]
 
     assert isinstance(message, EmailMessage)