Access a Dictionary Key Value Present Inside a List

The dictionary is a data structure in Python. A Dictionary in Python holds a key-value pair in it. Every key in the dictionary is unique. A value present in Dictionary can be accessed in Python in two different ways. A list can hold any data structure to it. A list can also contain a dictionary in it. In this article, we will see how to access a dictionary key value present inside a list in Python.

Access A Dictionary Key Value Present Inside a List

Below are some of the ways by which we can access a dictionary key value present inside a list in Python:

1. Using square brackets
2. Using get() method
3. Using for loop

Access A Dictionary Key Using square brackets

In this example, a dictionary “companies” associates tech company names with their founders. The code then retrieves the founder of “Meta” from the list “myList” and prints the result, yielding “Mark Zuckerberg.”

Python3

companies = {"Microsoft": "Bill Gates", "Meta": "Mark Zuckerberg",
             "Tesla": "Elon Musk", "Google": "Sundar Pichai", "iPhone": "Tim Cook"}

myList = ["Hello", companies, "12345", 100]

answer = myList[1]["Meta"]

print(answer)

Output

Mark Zuckerberg

Access A Dictionary Key Using get() method

In this example, a dictionary “companies” associates tech company names with their founders. The code retrieves the founder of “Google” from the list “myList” using the `get` method and prints the result, yielding “Sundar Pichai” or `None` if the key is not found.

Python3

companies = {"Microsoft": "Bill Gates", "Meta": "Mark Zuckerberg",
             "Tesla": "Elon Musk", "Google": "Sundar Pichai", "iPhone": "Tim Cook"}

myList = ["Hello", companies, "12345", 100]

answer = myList[1].get("Google")

print(answer)

Output

Sundar Pichai

Access A Dictionary Key Using for loop

In this example, there’s a dictionary “student” with keys “name,” “age,” and “lastName.” The dictionary is then placed in a list called “sampleList.” The code iterates through the list, and for each dictionary in the list, it iterates through key-value pairs using the items() method.

Python3

student = {"name": "Alice", "age": 10, "lastName": "John"}

sampleList = [student]

for element in sampleList:

    for studentKey, studentValue in element.items():

        print(studentKey, "=", studentValue)

Output

name = Alice
age = 10
lastName = John