如何插入到特定键中的字典值列表

Question

I have a list of dictionaries which is like this

mylist = [ {'Var1': 'one', 'Var2': 'two', 'Var3': '0'}, {'Var1': 'one', 'Var2': 'two', 'Var3': '0'} ]

What if i want to get the index for mylist[0]['Var1']?? I need to get the index of it not change it manually. Im iterrating through my list with a for loop and i need to know in what index it belongs

Answer 1

1- You should get your first dictionary from the list by mylist[0] .

2- and then nest it with accessing your desired key ['Var3'] .

So the command will be: mylist[0]['Var3'] = value

Answer 2

If you just want to work with the first dictionary in 'mylist', you can access it at:

mylist[0]

So adjusting its 'Var3's value would be

mylist[0]['Var3'] = 'something_new'

Answer 3

The value of the dictionary fields can be directly overwritten.

Example: If you want to change 'Var3' key's value at the first dictionary, it would be like mylist[0]['Var3'] = 'something'