Course Content

Python Functions Tutorial

1. What is Function in Python?

What Is Function?Challenge: Building functions Arguments Return Value Function Body Built-in Functions

2. Positional and Optional Arguments

Positional Arguments Challenge: Positional Arguments Optional Arguments Challenge: Optional Arguments

3. Arbitrary Arguments

Arbitrary Arguments Arbitrary Keyword Arguments Combination of Positional and Optional Arguments

4. Function Return Value Specification

Single Return Value Multiple Return Values None Return Value Generator Functions Challenge: Traffic lights

5. Recursion and Lambda Functions

Recursion Challenge: Pyramid Lambda Functions Immediately Invoked Lambda Expression Writing Effective and Maintainable Functions

Arbitrary Keyword Arguments

In programming, there's a special syntax for passing any number of named parameters to a function. This syntax is called **kwargs.

**kwargs allows a function to accept any number of named arguments and treat them as a dictionary.


              123456
            
def example_function(**kwargs):
    for key, value in kwargs.items():
        print(f'{key}: {value}')

# Example function call
example_function(name='John', age=25, city='New York')

In this example, **kwargs receives named arguments and prints their keys and values.

Note
The .items() method is used to obtain a list of key-value pairs (items) from a dictionary in Python. Each element in this list is represented as a tuple (key, value).

Task

Fill in the blanks (___) in the function definition so that it can accept a variable number of key-value pairs representing item names and their costs using keyword arguments **kwargs.
Fill in the blanks (___) in the loop to correctly calculate the total cost of the items stored in the **kwargs variable.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

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Section 3. Chapter 2

Arbitrary Keyword Arguments

In programming, there's a special syntax for passing any number of named parameters to a function. This syntax is called **kwargs.

**kwargs allows a function to accept any number of named arguments and treat them as a dictionary.


              123456
            
def example_function(**kwargs):
    for key, value in kwargs.items():
        print(f'{key}: {value}')

# Example function call
example_function(name='John', age=25, city='New York')

In this example, **kwargs receives named arguments and prints their keys and values.

Note
The .items() method is used to obtain a list of key-value pairs (items) from a dictionary in Python. Each element in this list is represented as a tuple (key, value).

Task

Fill in the blanks (___) in the function definition so that it can accept a variable number of key-value pairs representing item names and their costs using keyword arguments **kwargs.
Fill in the blanks (___) in the loop to correctly calculate the total cost of the items stored in the **kwargs variable.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 2

Arbitrary Keyword Arguments

In programming, there's a special syntax for passing any number of named parameters to a function. This syntax is called **kwargs.

**kwargs allows a function to accept any number of named arguments and treat them as a dictionary.


              123456
            
def example_function(**kwargs):
    for key, value in kwargs.items():
        print(f'{key}: {value}')

# Example function call
example_function(name='John', age=25, city='New York')

In this example, **kwargs receives named arguments and prints their keys and values.

Note
The .items() method is used to obtain a list of key-value pairs (items) from a dictionary in Python. Each element in this list is represented as a tuple (key, value).

Task

Fill in the blanks (___) in the function definition so that it can accept a variable number of key-value pairs representing item names and their costs using keyword arguments **kwargs.
Fill in the blanks (___) in the loop to correctly calculate the total cost of the items stored in the **kwargs variable.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

In programming, there's a special syntax for passing any number of named parameters to a function. This syntax is called **kwargs.

**kwargs allows a function to accept any number of named arguments and treat them as a dictionary.


              123456
            
def example_function(**kwargs):
    for key, value in kwargs.items():
        print(f'{key}: {value}')

# Example function call
example_function(name='John', age=25, city='New York')

In this example, **kwargs receives named arguments and prints their keys and values.

Note
The .items() method is used to obtain a list of key-value pairs (items) from a dictionary in Python. Each element in this list is represented as a tuple (key, value).

Task

Fill in the blanks (___) in the function definition so that it can accept a variable number of key-value pairs representing item names and their costs using keyword arguments **kwargs.
Fill in the blanks (___) in the loop to correctly calculate the total cost of the items stored in the **kwargs variable.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 3. Chapter 2

Switch to desktop for real-world practiceContinue from where you are using one of the options below