Как составить регулярное выражение?

Question

[Никита Рубинковский]

Здравствуйте!
Имеется строка:

[{'slot': -1, 'team': 2, 'time': 576.41, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 2, 'time': 791.491, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 1187.728,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 1237.115,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 1366.95,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 2, 'time': 1621.088, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 130,
  'slot': 7,
  'team': 3,
  'time': 1655.347,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 132,
  'slot': 9,
  'team': 3,
  'time': 1686.872,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 2,
  'slot': 2,
  'team': 2,
  'time': 1751.123,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 1780.849,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 3, 'time': 1927.636, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 2117.449,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 132,
  'slot': 9,
  'team': 3,
  'time': 2156.047,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'key': '512', 'time': 2178.992, 'type': 'CHAT_MESSAGE_BARRACKS_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 2326.829,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'key': '2', 'time': 2333.384, 'type': 'CHAT_MESSAGE_BARRACKS_KILL'}]

Необходимо:
1. Проверить есть ли в этой строке подстрока, где 'type': 'CHAT_MESSAGE_BARRACKS_KILL'.
2. Если есть, то найти первую предыдущую подстроку, где 'team' = 2 или 3.

Как это можно реализовать?

Comments

[Дмитрий]

а где строка-то?

[Никита Рубинковский]

Дмитрий,

[{'slot': -1, 'team': 2, 'time': 576.41, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 2, 'time': 791.491, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 1187.728,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 1237.115,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 1366.95,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 2, 'time': 1621.088, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 130,
  'slot': 7,
  'team': 3,
  'time': 1655.347,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 132,
  'slot': 9,
  'team': 3,
  'time': 1686.872,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 2,
  'slot': 2,
  'team': 2,
  'time': 1751.123,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 1780.849,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 3, 'time': 1927.636, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 2117.449,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 132,
  'slot': 9,
  'team': 3,
  'time': 2156.047,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'key': '512', 'time': 2178.992, 'type': 'CHAT_MESSAGE_BARRACKS_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 2326.829,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'key': '2', 'time': 2333.384, 'type': 'CHAT_MESSAGE_BARRACKS_KILL'}]

[Дмитрий Шицков]

Никита Рубинковский, это не строка, а json. Работайтте с ним как с json.

[Никита Рубинковский]

Дмитрий Шицков, Подскажите, как именно?

[Дмитрий Шицков]

Никита Рубинковский, pythonicway.com/education/basics/17-python-json-parse

Answer 1

[Александр]

Ох уж эти дотеры, совсем обленились...

import json
data = json.loads("""[{'slot': -1, 'team': 2, 'time': 576.41, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 2, 'time': 791.491, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 1187.728,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 1237.115,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 1366.95,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 2, 'time': 1621.088, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 130,
  'slot': 7,
  'team': 3,
  'time': 1655.347,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 132,
  'slot': 9,
  'team': 3,
  'time': 1686.872,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 2,
  'slot': 2,
  'team': 2,
  'time': 1751.123,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 1780.849,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'slot': -1, 'team': 3, 'time': 1927.636, 'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 129,
  'slot': 6,
  'team': 3,
  'time': 2117.449,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'player_slot': 132,
  'slot': 9,
  'team': 3,
  'time': 2156.047,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'key': '512', 'time': 2178.992, 'type': 'CHAT_MESSAGE_BARRACKS_KILL'},
 {'player_slot': 4,
  'slot': 4,
  'team': 2,
  'time': 2326.829,
  'type': 'CHAT_MESSAGE_TOWER_KILL'},
 {'key': '2', 'time': 2333.384, 'type': 'CHAT_MESSAGE_BARRACKS_KILL'}]""".replace("'",'"'))
for i,e in enumerate(data):
	if e['type'] == 'CHAT_MESSAGE_BARRACKS_KILL':
		print(data[i-1])

Comments

[Никита Рубинковский]

Александр Спасибо)
А как цикле проверить несколько таких строк?

[Александр]

взять и проверить.

[Никита Рубинковский]

Александр Сделал вот так:

radiant_barracks_kills = 0
dire_barracks_kills = 0
for objective in match['objectives']:
    for i,e in enumerate(objective):
        if e['type'] == 'CHAT_MESSAGE_BARRACKS_KILL':
            if objective[i-1]['slot'] < 5:
                radiant_barracks_kills += 1
            if objective[i-1]['slot'] >= 5:
                dire_barracks_kills += 1

Но ошибка:
string indices must be integers