fix json encoding of python date objects

video_metadata/views/tmdb.py

@@ -1,7 +1,7 @@
 
 import cgi
 from dataclasses import dataclass, field
-from datetime import date
+from datetime import date, datetime
 from enum import Enum
 import json
 import re
@@ -78,9 +78,14 @@ class view_result:
 #   add flask 1.1 to requirements when alpine distro updates flask
 # NOTE: haven't found a better way to json encode dataclasses :(
 class result_encoder(json.JSONEncoder):
+
     def default(self, obj):
         if isinstance(obj, view_result):
             return obj.__dict__
+        if isinstance(obj, date):
+            return obj.isoformat()
+        if isinstance(obj, datetime):
+            return obj.isoformat()
 
         try:
             ret = json.JSONEncoder.default(self, obj)
@@ -120,9 +125,7 @@ def list_movie_test():
 
 @bp.route('/query_movie', methods=['GET', 'POST'])
 def query_movie():
-    errors = []
     query = query_data()
-    view_results = []
 
     if 'query' in request.form:
         query.raw_query_str = request.form['query']