Conteúdo do Curso

Python Advanced Concepts

1. Modules and Imports

Python Project Structure Understanding Modules Import Statements Understanding Libraries in Python Exploring Standard Libraries Package Management

2. Error Handling

Basics of Error Handling Raising Exceptions Handling Code After Exceptions Using Assertions Best Practices in Exception Handling

3. File Handling

Introduction to File Handling Reading and Writing Files Advanced File Operations Working with File Paths Context Managers Custom Context Managers Handling Binary Files

4. Pytest Framework

Introduction to Testing in Python Pytest Framework Assert Statement Test Parametrization

5. Unittest Framework

Introduction to Unittest Assert Methods SetUp and TearDown Steps Mocking Technique Mocking in Details

6. Iterators and Generators

Python Iterables Understanding Iterators Lazy Evaluation Introduction to Generators Practical Examples of Generators

Handling Code After Exceptions

The try, except, else, and finally clauses form a combination that handles exceptions, performs cleanup, and executes code based on whether exceptions were raised or not.

When No Exceptions Raised

The else block is executed if NO exceptions were raised in the try block. It is useful for code that must be executed if the try block did not throw an error but should not be executed if there was an error.

Example Usage


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try:
    print("Trying to divide")
    result = 10 / 2
except ZeroDivisionError:
    print("Divided by zero!")
else:
    print("Division successful:", result)

In this example, the else clause runs only if no ZeroDivisionError is caught in the try block.

Executing Cleanup Actions

The finally block lets you execute code, regardless of whether an exception was raised or not. This is typically used for clean-up actions.

Example Usage


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try:
    print("Trying to divide")
    result = 10 / 0
except ZeroDivisionError:
    print("Divided by zero!")
else:
    print("Division successful:", result)
finally:
    print("Operation attempted.")

In this scenario, the finally clause will execute regardless of whether the try block succeeds or the except block catches an exception, ensuring that the message "Operation attempted." is printed in every case.

Tarefa

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Implement a complete error handling block with try, except, else, and finally clauses. Your task is to handle a simple calculation process.

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Seção 2. Capítulo 3

Handling Code After Exceptions

The try, except, else, and finally clauses form a combination that handles exceptions, performs cleanup, and executes code based on whether exceptions were raised or not.

When No Exceptions Raised

Example Usage


              1234567
            
try:
    print("Trying to divide")
    result = 10 / 2
except ZeroDivisionError:
    print("Divided by zero!")
else:
    print("Division successful:", result)

In this example, the else clause runs only if no ZeroDivisionError is caught in the try block.

Executing Cleanup Actions

The finally block lets you execute code, regardless of whether an exception was raised or not. This is typically used for clean-up actions.

Example Usage


              123456789
            
try:
    print("Trying to divide")
    result = 10 / 0
except ZeroDivisionError:
    print("Divided by zero!")
else:
    print("Division successful:", result)
finally:
    print("Operation attempted.")

Tarefa

Swipe to show code editor

Implement a complete error handling block with try, except, else, and finally clauses. Your task is to handle a simple calculation process.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Obrigado pelo seu feedback!

Seção 2. Capítulo 3

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo