> I'd just keep the interesting runners, along with their race numbers, in a > dict. The enumerate function is handy here. Something like (untested): > > runner_lists = {} > for n, item in enumerate(result): > if this one is interested/not-filtered: > runner_lists[n] = result["RacingFormGuide"]["Event"]["Runners"] > > and just return runner_lists. That way you know what the race numbers were > for > each list of runners. >
> > Cheers, > Cameron Simpson The main issue is that enumerate doesn't enumerate on the lists when trying to filter. result = meeting_id["Races"] so yes enumerating this works, showing just printing n and item. runner_lists = {} for n, item in enumerate(result): # if this one is interested / not -filtered: print(n, item) 0 {'FeatureRaceBonusActive': 'Disabled', 'FixedPriceSummary': {'FixedPrices': [{'SportId': 8, 'LeagueId': 102, 'MeetingId': 1218, 'MainEventId': 650350, 'SubEventId': 3601361, 'Status': 'F', 'StatusDescription': 'FINALISED', 'BetTypeName': 'Win', 'EnablePlaceBetting': True}]}, 'RacingFormGuide': {'Copyright': ..... and so on it goes through the 7 items in this file. but including runner_lists = {} for n, item in enumerate(result): # if this one is interested / not -filtered: print(n, item) runner_lists[n] = result["RacingFormGuide"]["Event"]["Runners"] ## Produces Traceback (most recent call last): dict_keys(['RaceDay', 'ErrorInfo', 'Success']) File "/home/sayth/PycharmProjects/ubet_api_mongo/parse_json.py", line 31, in <module> runner_lists[n] = result["RacingFormGuide"]["Event"]["Runners"] TypeError: list indices must be integers or slices, not str Cheers Sayth -- https://mail.python.org/mailman/listinfo/python-list