if there's better way to do, feel free to tell me

sortedrooms = {}
    for each in roomslist.rooms:
        result = (await client.space_get_hierarchy(each))
        try:
            if result.rooms[0]['room_type'] == 'm.space':
                print(result.rooms[0])
                sortedrooms[result.rooms[0]['children_state'][0]['origin_server_ts']] = result.rooms[0]['name']
        except KeyError:
            pass
    print(dict(sorted(sortedrooms.items())))

Sorry, just saw this; you could achieve something similar without the try/except using structural pattern matching:

sortedrooms = {}
for room in roomslist.rooms:
    response = await client.space_get_hierarchy(room)
    match response.rooms:
        case [{"room_type": "m.space", "name": name, "children_state": [{"origin_server_ts": origin_server_ts}, *_]} as room, *_]:
            print(room)
            sortedrooms[origin_server_ts] = name
print(dict(sorted(sortedrooms.items())))

Sorry, just saw this; you could achieve something similar without the try/except using structural pattern matching:

sortedrooms = {}
for each in roomslist.rooms:
    response = await client.space_get_hierarchy(each)
    match response.rooms:
        case [{"room_type": "m.space", "name": name, "children_state": [{"origin_server_ts": origin_server_ts}, *_]} as room, *_]:
            print(room)
            sortedrooms[origin_server_ts] = name
print(dict(sorted(sortedrooms.items())))