Python Tutorials

Python Access Dictionary Items

Access Dictionary Items

You can access a dictionary item value using its key with square brackets ([]).

Example

company_dictionary = {
    "name": "Google", 
    "country": "USA", 
    "start_year": 1995
}

company_name = company_dictionary["name"]
print(company_name)

'Google'

In the above example, we are accessing the name of a company by using the key of the dictionary, so as in the output, you can see the company name is "Google".

You can use the get() function to access a dictionary item's value.

Example

company_dictionary = {
    "name": "Google", 
    "country": "USA", 
    "start_year": 1995
}

company_name = company_dictionary.get("name")
print(company_name)

'Google'

Here, we are accessing the name of a company by using the key of the dictionary with the get() function, and in the output, we get the company name as a "Google".

Fetch all Keys from the Dictionary.

The key() function returns all the keys of the dictionary.

Example

company_dictionary = {
    "name": "Google", 
    "country": "USA", 
    "start_year": 1995
}

dictionary_keys = company_dictionary.keys()
print(dictionary_keys)

dict_keys(['name', 'country', 'start_year'])

In the above example, in the output, you can see the list of all keys in the dictionary.

Fetch all Values from the Dictionary.

The values() function returns all the values in the dictionary.

Example

company_dictionary = {
    "name": "Google", 
    "country": "USA", 
    "start_year": 1995
}

dictionary_values = company_dictionary.values()
print(dictionary_values)

dict_values(['Google', 'USA', 1995])

Here, in the output, you can see the list of all values in the dictionary.

Fetch all Key-Value Pairs from the Dictionary.

The items() function returns all key-value pairs in the dictionary.

The items() function returned key-value pairs as in the tuple, and all tuples exist within a list.

Example

company_dictionary = {
    "name": "Google", 
    "country": "USA", 
    "start_year": 1995
}

dictionary_items = company_dictionary.items()
print(dictionary_items)

dict_items([('name', 'Google'), ('country', 'USA'), ('start_year', 1995)])

As you can see in the output, the items() function returned all key-value pairs from the dictionary.

Check If Key Exists In the Dictionary

To check the given key is present in the dictionary, use in keyword with the if condition check.

Example

company_dictionary = {
    "name": "Google", 
    "country": "USA", 
    "start_year": 1995
}

if "name" in company_dictionary:
    print("There is a name key in the dictionary.")
else:
    print("There is no name key in the dictionary.")

There is a name key in the dictionary.

Using the "in" keyword, we check if the "name" key exists in the dictionary, if it exists, then print the text "There is a name key in the dictionary." else print "There is no name key in the dictionary.".

You can see in the output that the "name" key exists in the dictionary that's why it prints the text "There is a name key in the dictionary.".