Python for Everybody - Full University Python Course Code

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2024-07-19 05:16:31

Functions, Finally, and Custom Exceptions
These three concepts are essential for writing robust and maintainable Python code. Here's a breakdown of each: Functions: Reusable blocks of code that perform a specific task. Defined using the def keyword followed by the function name and parentheses. Can take arguments (inputs) and return values (outputs). Promote code modularity and reusability. Example: Python def...

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2024-07-19 05:13:29

Handling Exceptions, and Multiple Handlers
Handling Exceptions with try-except An exception is an event that disrupts the normal flow of your Python program. Some examples: KeyError – raised when a key is not found in a dictionary IndexError - raised when you try to access an element outside the range of the list Exception handling is error-checking code in your program that looks for a special circumstance....

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2024-07-19 05:11:57

Class Customization and Operator Overloading
Class customization Class customization allows you to define how a class behaves for specific operations such as printing or accessing attributes. Customize classes by creating instances methods using special method names (double underscores). Rich comparison methods overload some common comparison operators. Rich comparison method Overloaded operator...

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2024-07-19 00:05:13

Constructors, Interfaces, and Memory
While Python has some similarities to other languages regarding these concepts, it also has some unique approaches. Constructors In Python: Unlike Java or C++, Python doesn't have a designated constructor keyword. Instead, it uses a special method called __init__(double underscore init) that gets called automatically whenever you create an object from a class. Purpose: Similar to other...

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2024-07-19 00:03:14

Intro to Classes and Objects python Show drafts
Classes: The Blueprints Imagine you're building a house. You wouldn't just start hammering and sawing without a plan, right? In Python, classes act like blueprints for creating objects. They define the characteristics (data) and functionalities (methods) that similar objects will have. Objects: Instances of the Blueprint Once you have a class, you can create individual objects from it. These...

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2024-07-17 15:06:32

Dictionaries
Dictionaries are another fundamental data structure in Python used for storing collections of items. Unlike lists which use numerical indexes for access, dictionaries use key-value pairs. This makes them ideal for situations where you need to associate data with names or unique identifiers. Here's a breakdown of dictionaries in Python: 1. Creating Dictionaries: Dictionaries are created...

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2024-07-17 15:04:29

Nested Lists, List Slicing, and Modifying Lists
Here's a breakdown of nested lists, list slicing, and modifying lists in Python: 1. Nested Lists: Nested lists are lists that contain other lists as elements. They allow you to create multi-dimensional data structures, useful for representing tables, grids, or hierarchical relationships. Python menu = [ ["Pizza", ["Margherita", "Pepperoni", "Hawaiian"]], ["Pasta",...

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2024-07-17 15:02:18

Lists, List Methods, and List Iteration
Lists are a fundamental data structure in Python used to store ordered collections of items. They are mutable, meaning you can modify their contents after creation. Here's a breakdown of lists, methods, and iteration: 1. Lists: Lists are created using square brackets []. Elements within the list can be of any data type (numbers, strings, booleans, even other lists). Python...

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2024-07-17 15:00:16

String Methods
String split() and join() It’s a common programming task is to take a large string and break it down into a bunch of substrings. The split() splits a string into a list of substrings called tokens. All the tokens combined form the larger string if put together. A separator character indicated where to split up the string, to create the tokens. ...

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2024-07-17 14:58:59

F-String Formatting and String Splicing
F-strings and string splicing are both methods for creating formatted strings in Python. However, they have distinct approaches and use cases: 1. F-Strings (formatted string literals): Introduced in Python 3.6, f-strings are a powerful and concise way to embed expressions directly within strings. They use an f prefix before the opening quotation mark. Here's the basic syntax:...

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