Python dictionary Method

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The items() method is a built-in dictionary method in Python that returns a view object that contains the key-value pairs of the dictionary as tuples. The order of the tuples is not guaranteed. You can use this method to loop over the key-value pairs of a dictionary.

Here's the syntax for the items() method:

items = my_dict.items()

Here, my_dict is the dictionary to get the key-value pairs from, and items is the view object that contains the tuples.

Here's an example:

# create a dictionary
my_dict = {'apple': 3, 'banana': 2, 'cherry': 5}

# get the key-value pairs as tuples
items = my_dict.items()

# print the key-value pairs
for key, value in items:
    print(key, value)

Output:

apple 3
banana 2
cherry 5

In this example, we create a dictionary my_dict with three key-value pairs. We then use the items() method to get a view object that contains the tuples of key-value pairs. We loop over the tuples using a for loop and print each key and value.

The items() method is useful when you need to loop over the key-value pairs of a dictionary. You can also use the items() method to create a new dictionary that contains a subset of the key-value pairs of the original dictionary. For example:

# create a dictionary
my_dict = {'apple': 3, 'banana': 2, 'cherry': 5}

# create a new dictionary with only the items where the value is greater than 2
new_dict = {k: v for k, v in my_dict.items() if v > 2}

# print the new dictionary
print(new_dict)

Output:

{'apple': 3, 'cherry': 5}

In this example, we use the items() method to loop over the key-value pairs of the my_dict dictionary. We create a new dictionary using a dictionary comprehension that includes only the key-value pairs where the value is greater than 2. The resulting dictionary contains only the key-value pairs for 'apple' and 'cherry'.

tutorial

Python dictionary Method - items()