python，排序不起作用（随机结果）

Question

I have the following python code:

def calcCompetitionsResults(competitors_in_competitions): #competitors_in_competitions is list of dictionaries

    competitions_champs = []
    competitions = {elem['competition name']: elem['competition type'] for elem in competitors_in_competitions}
    for compitition in competitions:
        list = [elem for elem in competitors_in_competitions if elem['competition name'] == compitition]
        print(list)
        list = sorted(list, key=itemgetter('result'), reverse=True)
        print(list)

output: (Before)

[{'competition name': 'high_jump', 'competitor id': '2', 'competition type': 'untimed', 'result': '101', 'competitor country': 'USA'}, {'competition name': 'high_jump', 'competitor id': '1', 'competition type': 'untimed', 'result': '96', 'competitor country': 'Canada'}, {'competition name': 'high_jump', 'competitor id': '1', 'competition type': 'untimed', 'result': '100', 'competitor country': 'Canada'}, {'competition name': 'high_jump', 'competitor id': '3', 'competition type': 'untimed', 'result': '90', 'competitor country': 'China'}]

(After):

[{'competition name': 'high_jump', 'competitor id': '1', 'competition type': 'untimed', 'result': '96', 'competitor country': 'Canada'}, {'competition name': 'high_jump', 'competitor id': '3', 'competition type': 'untimed', 'result': '90', 'competitor country': 'China'}, {'competition name': 'high_jump', 'competitor id': '2', 'competition type': 'untimed', 'result': '101', 'competitor country': 'USA'}, {'competition name': 'high_jump', 'competitor id': '1', 'competition type': 'untimed', 'result': '100', 'competitor country': 'Canada'}]

as you can see it wasn't sorted at all according to result field...

Answer 1

The result are string so you should convert it to int first, also please don't use list as variable name as python already used it, here I replaced list with l :

l = sorted(l, key=lambda x: int(x['result']), reverse=True)