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Python – Extract Similar Key Values
  • Last Updated : 11 Oct, 2020

Given a dictionary, extract all values which are from similar keys, i.e contains all similar characters, just jumbled to form each other.

Input : test_dict = {‘gfg’ : 5, ‘ggf’ : 19, ‘gffg’ : 9, ‘gff’ : 3, ‘fgg’ : 3}, tst_wrd = ‘fgg’ 
Output : [5, 19, 3] 
Explanation : gfg, ggf and fgg have values, 5, 19 and 3.

Input : test_dict = {‘gfg’ : 5, ‘gffg’ : 9, ‘gff’ : 3, ‘fgg’ : 3}, tst_wrd = ‘fgg’ 
Output : [5, 3] 
Explanation : gfg and fgg have values, 5 and 3. 

Method #1 : Using sorted() + loop

In this, we compare the key after sorting with target key, will have similar elements in correct order, and can be checked for equality. Once with match, their values are extracted.



Python3




# Python3 code to demonstrate working of
# Extract Similar Key Values
# Using loop + sorted()
  
# initializing dictionary
test_dict = {'gfg': 5, 'ggf': 19, 'gffg': 9, 'gff': 3, 'fgg': 3}
  
# printing original dictionary
print("The original dictionary is : " + str(test_dict))
  
# initializing word
tst_wrd = 'fgg'
  
res = []
for key, val in test_dict.items():
  
    # sorted to get similar key order
    if ''.join(list(sorted(key))) == tst_wrd:
        res.append(val)
  
# printing result
print("The extracted keys : " + str(res))

Output:

The original dictionary is : {‘gfg’: 5, ‘ggf’: 19, ‘gffg’: 9, ‘gff’: 3, ‘fgg’: 3}
The extracted keys : [5, 19, 3]

Method #2 : Using list comprehension + sorted()

In this, we perform similar task as above, just perform using shorthand using sorted() and list comprehension.

Python3




# Python3 code to demonstrate working of
# Extract Similar Key Values
# Using list comprehension + sorted()
  
# initializing dictionary
test_dict = {'gfg': 5, 'ggf': 19, 'gffg': 9, 'gff': 3, 'fgg': 3}
  
# printing original dictionary
print("The original dictionary is : " + str(test_dict))
  
# initializing word
tst_wrd = 'fgg'
  
# one-liner to solve this
res = [val for key, val in test_dict.items(
) if ''.join(list(sorted(key))) == tst_wrd]
  
# printing result
print("The extracted keys : " + str(res))

Output:

The original dictionary is : {‘gfg’: 5, ‘ggf’: 19, ‘gffg’: 9, ‘gff’: 3, ‘fgg’: 3}
The extracted keys : [5, 19, 3]

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