Python Programming for Raspberry Pi, Sams Teach Yourself in 24 Hours

After the path is added, you can import the needed module in the added production directory. LISTING 13.14 Adding a New Director ...

By the Way: Importing Near the Beginning A good rule of thumb for importing modules—custom or standard—into your Python script i ...

Write out the information from the text editor to the module by pressing Ctrl+O. The module file name should appear along with ...

At the interactive shell prompt, type import sys and press Enter to import the sys module. Type sys.path and press Enter to dis ...

modules to download and install on your system. PyPi used to be called the “cheese shop,” after a Monty Python’s Flying Circus s ...

Python interpreter. All modules, no matter where they “live,” must be imported before you can use the functions they contain. T ...

Hour 14. Exploring the World of Object-Oriented Programming What You’ll Learn in This Hour: How to create object classes Definin ...

method performs an operation, using the attributes in a class. For instance, you could create class methods to retrieve a specif ...

eggplant >>> print(prod1.description) carrot >>> Now you have two separate instances of the Product class: pro ...

Mutator class methods are functions that change the value of an attribute. The most common type of mutator method is called a se ...

attribute. As with setters, it’s somewhat of a standard convention to name getter accessor methods starting with get_, followed ...

pi@raspberrypi ~$ python3 script1401.py carrot – price: $1.00, inventory: 10 pi@raspberrypi ~$ The program code contained in the ...

TypeError: __init__() missing 3 required positional arguments: 'desc', 'price', and 'inventory' >>> To solve this probl ...

This is yet another method to make your life a lot easier! Deleting Class Instances Handling memory management in Python program ...

The Product class creates an instance of a product with three attributes the product description, price, and inventory Y ...

>>> prod1.price = 1.50 >>> print('The new price is', prod1.price) The new price is 1.50 >>> The prod1 ...

self.__inventory = inventory def get_inventory(self): return self.__inventory inventory = property(get_inventory, set_inventory) ...

create an instance of the Product class, uses the buy_Product() method to decrease the inventory value, and then uses the set_pr ...

3. You can create a method called set_lastname() that accepts the name value as a single parameter, then assign that value to th ...

Hour 15. Employing Inheritance What You’ll Learn in This Hour: What subclasses are What inheritance is How to use inheritance in ...