fix type issues

Author: leifj

src/pyff/api.py

@@ -392,7 +392,7 @@ def resources_handler(request):
     def _infos(resources: Iterator[Resource]) -> List[Mapping[str, Any]]:
         return list(filter(lambda i: 'State' in i and i['State'] is not None, [_info(r) for r in resources]))
 
-    def _info(r: Resource) -> List[Mapping[str, Any]]:
+    def _info(r: Resource) -> Mapping[str, Any]:
         nfo = r.info
         nfo['Valid'] = r.is_valid()
         nfo['Parser'] = r.last_parser

src/pyff/resource.py

@@ -10,7 +10,7 @@
 from copy import deepcopy
 from datetime import datetime
 from threading import Condition, Lock
-from typing import Optional, Dict
+from typing import Optional, Dict, Mapping, Any
 
 import requests
 
@@ -247,8 +247,8 @@ def is_expired(self) -> bool:
     def is_valid(self) -> bool:
         return not self.is_expired() and self.last_seen is not None and self.last_parser is not None
 
-    def add_info(self) -> Dict:
-        info = dict()
+    def add_info(self) -> Mapping[str, Optional[Any]]:
+        info: Dict[str, Optional[Any]] = dict()
         info['State'] = None
         info['Resource'] = self.url
         self._infos.append(info)
@@ -319,7 +319,7 @@ def save_backup(self):
 
     def load_resource(self, getter):
         data: Optional[str] = None
-        status: Optional[int] = None
+        status: int = 500
         info = self.add_info()
 
         log.debug("Loading resource {}".format(self.url))