Loop Iterate over all values of Dictionary

Iterate over values in dictionary python – Loop / Iterate over all Values of Dictionary in Python

by

Iterate over values in dictionary python: In Python, dictionaries are useful data structures that use keys for indexing. They are an unordered sequence of items (key-value pairs), so the order does not matter. The keys are not able to be changed. Dictionaries, like lists, can hold a variety of data types, including integers, floats, strings, NaN, Booleans, lists, arrays, and even nested dictionaries.

Given a dictionary, the task is to iterate over all values of the dictionary.

Examples:

Input:

dictionary = {'Hello': 600, 'world': 300, 'BTechGeeks': 900}

Output:

600
300
900

Traverse the values of Dictionary

Iterate through dictionary values python: There are several ways to traverse the values of dictionary some of them are:

Method #1:Using for loop

Python iterate through a dictionary: To iterate over the keys of a dictionary, a dictionary object can also be used as an iterable object. We can easily iterate over all keys in the dictionary if we use it with a for loop. The value associated with that key can then be selected during iteration.

Below is the implementation:

# Given dictionary
dictionary = {'Hello': 600, 'world': 300, 'BTechGeeks': 900}
# using for loop to traverse the dictionary
for key in dictionary:
    print(dictionary[key])

Output:

600
300
900

Method #2:Using  items()

The dictionary class in Python has a function items() that returns an iterable sequence of all the dictionary’s key-value pairs, dict items. It shows all of the dictionary’s items (key-value pairs), so any changes to the original dictionary will be reflected in this sequence. We can’t use indexing with this sequence, either. This can be used in conjunction with a for loop to iterate over all pairs in the dictionary, and we can select the second element of the pair / tuple, i.e. the value, while iterating.

Below is the implementation:

# Given dictionary
dictionary = {'Hello': 600, 'world': 300, 'BTechGeeks': 900}
# using items()
for key, value in dictionary.items():
    # printing the value
    print(value)

Output:

600
300
900

Method #3:Using values()

The dictionary class in Python has a function values() that returns an iterable sequence of all dictionary values, i.e. dict values. It is a view of the dictionary’s entire value set, which means that any changes to the original dictionary will be reflected in this sequence. We can’t use indexing with this sequence, either. However, we can use this in conjunction with a for loop to iterate through all of the dictionary’s values.

Below is the implementation:

# Given dictionary
dictionary = {'Hello': 600, 'world': 300, 'BTechGeeks': 900}
# using values()
for value in dictionary.values():
    # printing the value
    print(value)

Output:

600
300
900

Method #4:Using  list Comprehension

This list comprehension can also be used to iterate through all of the dictionary’s values and print each one separately.

Below is the implementation:

# Given dictionary
dictionary = {'Hello': 600, 'world': 300, 'BTechGeeks': 900}
# using list comprehension
print([value for value in dictionary.values()])

Output:

[600, 300, 900]

Method #5:Converting values to list

The sequence returned by the values() function can be passed to the list to create a list of all values in the dictionary .

We use list() function to achieve this. Print the list(values).

Below is the implementation:

# Given dictionary
dictionary = {'Hello': 600, 'world': 300, 'BTechGeeks': 900}
# converting given dictionary values to list using values() function
list_values = list(dictionary.values())
# print the dictionary values
for value in list_values:
    print(value)

Output:

600
300
900

Related Programs: