Day 97: Python Program to Map Two Lists into a Dictionary

 

keys = ['a', 'b', 'c', 'd']

values = [1, 2, 3, 4,]

mapped_dict = dict(zip(keys, values))

print("Mapped Dictionary:", mapped_dict)

#source code --> clcoding.com 

Code Explanation:

Define Lists of Keys and Values:

keys = ['a', 'b', 'c', 'd']

values = [1, 2, 3, 4]

keys is a list of strings representing the keys of the dictionary.

values is a list of integers representing the values to be mapped to those keys.

Combine Keys and Values Using zip():

mapped_dict = dict(zip(keys, values))

zip(keys, values): The zip() function pairs each element from the keys list with the corresponding element in the values list, forming an iterable of tuples: [('a', 1), ('b', 2), ('c', 3), ('d', 4)].

dict(zip(keys, values)): The dict() constructor takes this iterable of key-value pairs and creates a dictionary: {'a': 1, 'b': 2, 'c': 3, 'd': 4}.

Print the Result:

print("Mapped Dictionary:", mapped_dict)

This prints the dictionary to the console, showing the final result.

Output:

Mapped Dictionary: {'a': 1, 'b': 2, 'c': 3, 'd': 4}

Key Points:

zip(): Combines two iterables element-wise, creating tuples.

dict(): Converts an iterable of tuples into a dictionary.

Both lists must have the same length; otherwise, zip() will truncate to the shortest list.