Python Development: Creating Classes, Handling Errors, & Importing Modules

IN THIS COURSE

• 1.  Course Overview
  2m 8s
  In this video, you’ll learn more about your instructor and the course. You’ll learn to define and instantiate classes in Python. You’ll discover the use of the init method to initialize member variables of a class and how to use self keyword arguments to reference current instances of a class. You’ll learn the differences between the self keyword in Python and the this keyword in Java. You’ll also learn how to handle errors in Python. FREE ACCESS
• 2.  Working with Classes in Python
  8m 36s
  In this video, you’ll watch a demo. In this demo, you’ll learn how to conduct an exploration of support for classes and instances in Python. You’ll discover Python has support for classes, objects, inheritance. First, you’ll start by defining a simple class. You’ll investigate its functionality and then try out that functionality. FREE ACCESS
• 3.  Defining Methods within Python Classes
  12m
  In this video, you’ll watch a demo. In this demo, you’ll learn how member variables, specifically instance variables, are defined in Python. First, you’ll begin by redefining the class created in the last demo. Inside that class, you have a new method called init, specifically __init__. init takes in one input argument. Then, inside the body of this method you have a print statement which reads Instance initialized. Next, you’ll learn about this code. FREE ACCESS
• 4.  Catching Exceptions Using Python's Try Except Blocks
  11m 38s
  In this video, you’ll watch a demo. In this demo, you’ll learn about exceptions and errors in Python. You’ll learn that Python is interpreted and not compiled. This means there is no question of any difference between runtime and checked exception as exists in Java. You’ll also learn the terms error and exception can be used interchangeably. Finally, you’ll learn that in Python, syntax errors are a kind of exception. FREE ACCESS
• 5.  Using Python's Finally Block
  4m 29s
  In this video, you’ll watch a demo. In this demo, you’ll learn to raise an exception. You’ll discover in Python, the keyword for this is raise. In Java, you have try catch blocks. In Python you have try except blocks. In Java, you throw an exception. In Python, you raise one. You’ll follow along onscreen to raise an exception. Then, you’ll pass in arguments in the try block. This is followed by an except block. FREE ACCESS
• 6.  Importing Python Modules
  10m 36s
  In this video, you’ll watch a demo. This demo serves as a quick introduction to modules and packages. First, you’ll learn that in Python, the term module refers to any organizational unit of code. In Python, a package is also a module. You’ll learn a Python package is a module with a __path__ attribute. Every package is a module, but not every module is a package. Packages have a directory structure and contain multiple modules. FREE ACCESS
• 7.  Creating Simple Python Modules
  12m 4s
  In this video, you’ll watch a demo. This demo is about special variable names and about how the import of modules works in Python. You will use Python from the terminal window rather than Jupyter notebooks. You will also use the Sublime Text editor. You’ll run Python from the command line, and then you will define a class. FREE ACCESS
• 8.  Parsing Command Line Arguments in Python
  11m 55s
  In this video, you’ll watch a demo. This demo deals with command line arguments from Python Programs. In this demo, you will continue to use Python from the command line. You'll have the Python code in the Sublime text editor. You’ll run code from the terminal window. First, you’ll start by importing sys. This module is required when working with command line arguments. FREE ACCESS
• 9.  Course Summary
  2m 58s
  In this video, you’ll review what you’ve learned in the course. You’ve learned to create and instantiate classes in Python. You also learned to define classes and create class variables. You learned about the __init__ method and how to use the try-except block to catch potential errors. You learned about the else block and the finally block. You also learned about package installers and how the process of importing one Python file into another works. FREE ACCESS