Geography: Fix crash in nominatim.py when some results are not OSM objects

plugins/Geography/nominatim.py

@@ -31,8 +31,6 @@
 
 import json
 import time
-import string
-import datetime
 import threading
 import urllib.parse
 
@@ -77,4 +75,4 @@ def search_osmids(query):
     on the query format"""
     data = _query_nominatim("/search", {"format": "json", "q": query})
 
-    return [item["osm_id"] for item in data]
+    return [item["osm_id"] for item in data if item.get("osm_id")]

plugins/Geography/test.py

@@ -114,5 +114,4 @@ class GeographyNominatimTestCase(SupyTestCase):
         self.assertEqual(results[0], 450381, results)
 
 
-
 # vim:set shiftwidth=4 tabstop=4 expandtab textwidth=79: