There are two lists of different lengths. The first contains keys, and the second contains values. Write a function that creates a dictionary from these keys and values.

Question

Write a function that creates a dictionary from these keys and values.
If the key did not have enough values, the dictionary should have the value None.
Values that did not have enough keys should be ignored.

Answer 1

Here's a function that creates a dictionary from two lists of different lengths, where the first list contains keys and the second list contains values:

def create_dictionary(keys, values):

    dictionary = {}

    for i in range(min(len(keys), len(values))):

        dictionary[keys[i]] = values[i]

    return dictionary

In this function, keys and values are the two input lists. We create an empty dictionary to store the key-value pairs. The for loop iterates over the range of the minimum length between the two lists, ensuring that we only consider the common elements. Within each iteration, we assign the i-th element of keys as the key and the i-th element of values as the corresponding value in the dictionary. Finally, we return the resulting dictionary.

You can use this function as follows:

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

values = [1, 2, 3, 4]

result = create_dictionary(keys, values)

print(result)

Output:

{'a': 1, 'b': 2, 'c': 3}

In this example, the keys list contains three elements, and the values list contains four elements. The function will create a dictionary by matching the keys and values until the minimum length is reached. The resulting dictionary is then printed.

Answer 2

def create_dictionary(keys, values):

    dictionary = {}

    length = min(len(keys), len(values))

    for i in range(length):

        dictionary[keys[i]] = values[i]

    return dictionary

function create_dictionary takes in two lists, keys and values, which have different lengths. An empty dictionary is initialized to store the key-value pairs. The loop iterates over the range of the minimum length between the two lists. The i-th element of keys is used as the key, and the corresponding i-th element of values is assigned as the value in the dictionary. Finally, the resulting dictionary is returned.

You can use the function like this:

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

values = [1, 2, 3, 4]

result = create_dictionary(keys, values)

print(result)

Answer 3

def create_dictionary(keys, values):

    return {keys[i]: values[i] for i in range(min(len(keys), len(values)))}

The function create_dictionary uses a dictionary comprehension to directly create the dictionary. The comprehension iterates over the range of the minimum length between the keys and values lists. For each index i, it assigns the i-th element of keys as the key and the corresponding i-th element of values as the value in the dictionary. The resulting dictionary is returned in a single line of code.