Python dict Function with Examples

Python dict function is a constructor which creates a dictionary. Python dictionary provides three different constructors to a create dictionary.

• ✅ If no argument is passed, it creates an empty dictionary.
• ✅ If a positional argument is given, a dictionary is created with the same key-value pairs. Otherwise, pass an iterable object.
• ✅ If keyword arguments are given, the keyword arguments and their values are added to the dictionary created from the positional argument.

Python dict Function Syntax

It has the following syntax:

dict ([**kwargs])

dict ([mapping, **kwargs])

dict ([iterable, **kwargs])

Parameters

• ✅ kwargs : It is a keyword argument.
• ✅ mapping : It is another dictionary.
• ✅ iterable : It is an iterable object in the form of a key-value pair(s).

Return

It returns a dictionary.

Different Examples for Python dict Function

Let’s explore a few examples of the dict function to grasp its capabilities.

Python dict Function Example 1

An illustrative example for generating either an empty dictionary or a dictionary that contains elements. The parameters of the dictionary are not mandatory.

# Python dict() function example

# Calling function

result = dict() # returns an empty dictionary

result2 = dict(a=1,b=2)

# Displaying result

print(result)

print(result2)

Output:

{}

{'a': 1, 'b': 2}

Python dict Function Example 2

Let’s consider an illustration to showcase the functionality of the Python dict function.

# Python dict() function example

# Calling function

result = dict({'x': 5, 'y': 10}, z=20) # Creating dictionary using mapping

result2 = dict({'x': 5, 'y': 10, 'z':20})

# Displaying result

print(result)

print(result2)

Output:

{'x': 5, 'z': 20, 'y': 10}

{'x': 5, 'z': 20, 'y': 10}

Python dict Function Example 3

Let us consider an example to illustrate the functionality of the Python dict Function.

# Python dict() function example

# Calling function

result = dict([(1, 'One'), [2, 'Two'], [3,'Three']]) # Creating using iterable

result2 = dict([['x','X'],('y','Y')])

# Displaying result

print(result)

print(result2)

Output:

{1: 'One', 2: 'Two', 3: 'Three'}

{'y': 'Y', 'x': 'X'}