python - ProcessPoolExecutor 传递多个参数

Question

ESPNP 播放器免费

class ESPNPlayerFree:

def __init__(self, player_id, match_id, match_id_team):
...

团队列表1:

 [('277906', 'cA2i150s81HI3qbq1fzi', 'za1Oq5CGHj3pkkXWNghG'), ('213674', 'cA2i150s81HI3qbq1fzi', 'za1Oq5CGHj3pkkXWNghG')]

代码

 with concurrent.futures.ProcessPoolExecutor(max_workers=30) as executor:
    results = list(executor.map(ESPNPlayerFree, teamList1))

类型错误: __init__() missing 2 required positional arguments: 'match_id' and 'match_id_team'

Answer 1

编辑:

使用多处理池，您将使用 starmap()它将使用 start *将元组解包为参数

ESPNPlayerFree( *('277906', 'cA2i150s81HI3qbq1fzi', 'za1Oq5CGHj3pkkXWNghG') ) 
ESPNPlayerFree( *('213674', 'cA2i150s81HI3qbq1fzi', 'za1Oq5CGHj3pkkXWNghG') ) 

好像 concurrent.futures.ProcessPoolExecutor没有 starmap()所以它将它作为一个参数发送 - tuple

ESPNPlayerFree( ('277906', 'cA2i150s81HI3qbq1fzi', 'za1Oq5CGHj3pkkXWNghG') ) 
ESPNPlayerFree( ('213674', 'cA2i150s81HI3qbq1fzi', 'za1Oq5CGHj3pkkXWNghG') ) 

你需要在函数内部解压它

def __init__(self, data):
    player_id, match_id, match_id_team = data