Given a string, convert it to key-value list dictionary, with key as 1st word and rest words as value list.
Input : test_list = [“gfg is best for geeks”, “CS is best subject”]
Output : {‘gfg’: [‘is’, ‘best’, ‘for’, ‘geeks’], ‘CS’: [‘is’, ‘best’, ‘subject’]}
Explanation : 1st elements are paired with respective rest of words as list.Input : test_list = [“gfg is best for geeks”]
Output : {‘gfg’: [‘is’, ‘best’, ‘for’, ‘geeks’]}
Explanation : 1st elements are paired with respective rest of words as list.
Method #1 : Using split() + loop
In this, we iterate for each string, and then perform split of string using split(), assign 1st element as key and pack other elements into list, using * operator and create key-value list pair.
Python3
# Python3 code to demonstrate working of # Convert String List to Key-Value List dictionary # Using split() + loop # initializing list test_list = ["gfg is best for geeks", "I love gfg", "CS is best subject"] # printing string print("The original list : " + str(test_list)) res = dict() for sub in test_list: # split() for key # packing value list key, *val = sub.split() res[key] = val # printing results print("The key values List dictionary : " + str(res)) |
The original list : ['gfg is best for geeks', 'I love gfg', 'CS is best subject']
The key values List dictionary : {'gfg': ['is', 'best', 'for', 'geeks'], 'I': ['love', 'gfg'], 'CS': ['is', 'best', 'subject']}
Method #2 : Using split() + dictionary comprehension
This is similar way to solve this problem. In this, dictionary comprehension is used to solve this problem.
Python3
# Python3 code to demonstrate working of # Convert String List to Key-Value List dictionary # Using split() + dictionary comprehension # initializing list test_list = ["gfg is best for geeks", "I love gfg", "CS is best subject"] # printing string print("The original list : " + str(test_list)) # using dictionary comprehension to solve this problem res = {sub[0] : sub[1:] for sub in (ele.split() for ele in test_list)} # printing results print("The key values List dictionary : " + str(res)) |
The original list : ['gfg is best for geeks', 'I love gfg', 'CS is best subject']
The key values List dictionary : {'gfg': ['is', 'best', 'for', 'geeks'], 'I': ['love', 'gfg'], 'CS': ['is', 'best', 'subject']}
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