When it is required to replace the value by Kth index value in a list of dictionary, the ‘isinstance’ method and a simple iteration are used.
Example
Below is a demonstration of the same
my_list = [{'python': [5, 7, 9, 1], 'is': 8, 'good': 10},
{'python': 1, 'for': 10, 'fun': 9},
{'cool': 3, 'python': [7, 3, 9, 1]}]
print("The list is :")
print(my_list)
K = 2
print("The value of K is")
print(K)
my_key = "python"
for index in my_list:
if isinstance(index[my_key], list):
index[my_key] = index[my_key][K]
print("The result is :")
print(my_list)Output
The list is :
[{'python': [5, 7, 9, 1], 'is': 8, 'good': 10}, {'python': 1, 'fun': 9, 'for': 10}, {'python': [7, 3, 9, 1], 'cool': 3}]
The value of K is
2
The result is :
[{'python': 9, 'is': 8, 'good': 10}, {'python': 1, 'fun': 9, 'for': 10}, {'python': 9, 'cool': 3}]Explanation
A list of dictionary is defined and is displayed on the console.
The value if K is defined and is displayed on the console.
The key element is defined.
The list is iterated over and the ‘isinstance’ method is used to check if a specific element is same type as that of list type.
If yes, the K value is placed instead of the specific element.
This is the output that is displayed on the console.