Given dictionary and custom keys list, check if all those custom keys equals K.
Input : test_dict = {“Gfg” : 5, “is” : 8, “Best” : 10, “for” : 10, “Geeks” : 10}, cust_keys = [“is”, “for”, “Geeks”], K = 10
Output : False
Explanation : “is” is having 8 as value not 10, hence False
Input : test_dict = {“Gfg” : 5, “is” : 10, “Best” : 10, “for” : 10, “Geeks” : 10}, cust_keys = [“is”, “for”, “Geeks”], K = 10
Output : True
Explanation : All keys have 10 as values.
Method #1 : Using loop
This is brute way in which this task can be performed. In this we iterate each custom key and check if all are equal to K by keeping track using boolean variable.
Python3
# Python3 code to demonstrate working of # Test if custom keys equal to K in dictionary# Using loop # initializing dictionarytest_dict = {"Gfg" : 5, "is" : 8, "Best" : 10, "for" : 8, "Geeks" : 8} # printing original dictionaryprint("The original dictionary is : " + str(test_dict)) # initializing custom keys list cust_keys = ["is", "for", "Geeks"] # initializing K K = 8 # using loop to check for all keys res = True for key in cust_keys: if test_dict[key] != K: # break even if 1 value is not equal to K res = False break # printing result print("Are all custom keys equal to K : " + str(res)) |
The original dictionary is : {'Gfg': 5, 'is': 8, 'Best': 10, 'for': 8, 'Geeks': 8}
Are all custom keys equal to K : True
Method #2 : Using all() + generator expression
The combination of above functionalities can be used to solve this problem. In this, we use all() to check for all the values and generator expression performs required iteration.
Python3
# Python3 code to demonstrate working of # Test if custom keys equal to K in dictionary# Using all() + generator expression # initializing dictionarytest_dict = {"Gfg" : 5, "is" : 8, "Best" : 10, "for" : 8, "Geeks" : 8} # printing original dictionaryprint("The original dictionary is : " + str(test_dict)) # initializing custom keys list cust_keys = ["is", "for", "Geeks"] # initializing K K = 8 # returns true if all elements match K res = all(test_dict[key] == K for key in cust_keys) # printing result print("Are all custom keys equal to K : " + str(res)) |
The original dictionary is : {'Gfg': 5, 'is': 8, 'Best': 10, 'for': 8, 'Geeks': 8}
Are all custom keys equal to K : True
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