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Python – Check if particular value is present corresponding to K key
When it is required to check if particular value is present corresponding to a key ‘K’, a list comprehension is used.
Below is a demonstration of the same −
Example
my_list = [{"python" : "14", "is" : "great", "fun" : "1`"},{"python" : "cool", "is" : "fun", "best" : "81"},{"python" : "93", "is" : "CS", "amazing" : "16"}]
print("The list is :")
print(my_list)
K = "python"
print("The value of K is ")
print(K)
value = "cool"
my_result = value in [index[K] for index in my_list]
print("The result is :")
if(my_result == True):
print("The value is present in with respect to key ")
else:
print("The value isn't present with respect to key")Output
The list is :
[{'python': '14', 'is': 'great', 'fun': '1`'}, {'python': 'cool', 'is': 'fun', 'best': '81'}, {'python': '93', 'is': 'CS', 'amazing': '16'}]
The value of K is
python
The result is :
The value is present in with respect to keyExplanation
A list of dictionary elements is defined and is displayed on the console.
A value for K is defined and displayed on console.
Another string is defined.
The list is iterated over using list comprehension and the index of the K value is searched for in the list of dictionary.
This is assigned to a variable.
Based on if this variable is ‘True’ or ‘False’, relevant message is displayed on the console.
Updated on: 06-Sep-2021
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