keep linter happy

etl/planning_data/address_data.py

@@ -54,7 +54,7 @@ def generate_address(site_name, site_number, street_name, secondary_street_name)
 
     if site_number is not None and street_name is not None:
         address = site_number + " " + street_name
-        if site_name != None:
+        if site_name is not None:
             address += " - " + site_name
         # in some cases it results in duplication when site_name repeats
         # address parts, but often it provides useful data

etl/planning_data/obtain_livestream_data_and_load_into_database.py

@@ -146,7 +146,7 @@ def throw_away_invalid_dates(entry):
             # Brent-87_0946 has "valid_date": "23/04/9187"
             entry[date_code] = None
 
-        if entry[date_code] != None:
+        if entry[date_code] is not None:
             # not believable values
             if entry[date_code] < datetime.datetime(1950, 1, 1):
                 print(date_code, "Unexpectedly early date, treating it as a missing date:", entry[date_code])