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Python dict() Function: Use, Syntax, and Examples

By IncludeHelp Last updated : December 07, 2024

Python dict() function

The dict() function is a library function in Python, it is used to create a dictionary with keywords( Ids) and values (s), it accepts a set of values with keywords, values and returns a dictionary.

Consider the below example with sample input/output values:

Input:
# creating dictionary 
std_info = dict(name = "Amit shukla", age = 21, course = "B.Tect (CS)")

# printing the value of dictionary 
print("std_info:", std_info)
    
Output:
std_info: {'course': 'B.Tect (CS)', 'age': 21, 'name': 'Amit shukla'}

Syntax

The following is the syntax of dict() function:

dict(keyword1=value1, keyword2=value2, ...)

Parameter(s):

The following are the parameter(s):

• keyword1=value1, keyword2=value2, ... – The set of keywords and values to create a dictionary.

Return Value

The return type of dict() function is <class 'dict'>, it returns dictionary.

Python dict() Function: Example 1

Python code to create a dictionary using dict() function.

# python code to demonstrate example of 
# dict() function

# creating dictionary 
std_info = dict(name = "Amit shukla", age = 21, course = "B.Tect (CS)")

# printing type 
print("type of std_info: ", type(std_info))

# printing the value of dictionary 
print("std_info:", std_info)

Output

type of std_info:  <class 'dict'>
std_info: {'course': 'B.Tect (CS)', 'age': 21, 'name': 'Amit shukla'}

Python dict() Function: Example 2

In this example, we are going to create a deep copy of an existing dictionary using the dict() function.

# Create a deep copy of the dictionary
# using dict() function

#  dictionary
std_info = {"name": "Amit shukla", "age": 21, "course": "B.Tect (CS)"}

# Create deep copy
result = dict(std_info)

# Print both dictionary
print("std_info:", std_info)
print("result:", result)

Output

std_info: {'name': 'Amit shukla', 'age': 21, 'course': 'B.Tect (CS)'}
result: {'name': 'Amit shukla', 'age': 21, 'course': 'B.Tect (CS)'}