Question

    selectedTeam = str(self.comboBox_2.currentText())
    sql2="select Players from TeamFormed where Name='"+selectedTeam+"';"
    curt=Teams.cursor()
    curt.execute(sql2)
    players=curt.fetchone()
    #Just to check the type length and contents
    print(type(players))
    print(players)
    print(len(players))

    ast.literal_eval(players[0])

    #Just to check the type length and contents
    print(type(players))
    print(players)
    print(len(players))

我有一个这样的元组

("['Virat Kohli', 'A B de villiers', 'K L Rahul', 'Aron Finch', 'Glenn Maxwell', 'Suresh Raina', 'Shikhar Dhawan', 'Rohit Sharma', 'B Kumar', 'James Anderson', 'M Shami', 'Jasprit Bumrah']",)

从数据库中获取数据后生成的

。该元组的长度显示为1。我想将其转换为长度为12的列表。

Answer 1

您可以使用literal_eval：

import ast
l = ("['Virat Kohli', 'A B de villiers', 'K L Rahul', 'Aron Finch', 'Glenn Maxwell', 'Suresh Raina', 'Shikhar Dhawan', 'Rohit Sharma', 'B Kumar', 'James Anderson', 'M Shami', 'Jasprit Bumrah']",)

k = ast.literal_eval(l[0])
# ['Virat Kohli', 'A B de villiers', 'K L Rahul', 'Aron Finch', 'Glenn Maxwell', 'Suresh Raina', 'Shikhar Dhawan', 'Rohit Sharma', 'B Kumar', 'James Anderson', 'M Shami', 'Jasprit Bumrah']
len(k) # 12

Answer 2

这里：

a = ("['Virat Kohli', 'A B de villiers', 'K L Rahul', 'Aron Finch', 'Glenn Maxwell', 'Suresh Raina', 'Shikhar Dhawan', 'Rohit Sharma', 'B Kumar', 'James Anderson', 'M Shami', 'Jasprit Bumrah']",)
exec('b = ' + a[0])

for c in b:
    print(c)

编辑

或者使用@ᴀʀᴍᴀɴ的解决方案，我认为更好。

从数据库获取的单个列表的元组转换为python中的列表

2 个答案: