Python Fundamentals I

Getting started

Pre-course questions

Course Introduction

Requirements: what you need before you can start

Course structure

What is Python used for?

Python’s Major Features

Python introduction: the quiz

Installing Python

Installing Python on Windows

Installing Python on MacOS

Installing Python on Linux

Basic concepts: taking our first steps

How to start Python

Your First Steps in the Python REPL

What is the REPL?

About the example code

Defining variables

Using variables in expressions

Variable naming

Variables: the quiz

Strings: working with text

What is a Python string and how to create one

Manipulating strings

Formatting strings with f-string

Printing text to your screen

Strings: the quiz

Booleans and loops

What is a Boolean?

Boolean operators

Boolean logic: the quiz

For loops and lists

Loops and lists: the quiz

What is a function and why do we need functions?

Creating your own functions

Returning from a function

Default values and named parameters

Functions: The Quiz

Adding comments

Common mistakes with comments

Code Comments: The Quiz

Your first program

Entering the code in the REPL

Analyzing your first Python program

Assignment: adapt your first Python program

Using an IDE

Creating Python programs

Create a .py file

Enter the code and save the file

Run (execute) the program file

Visual Studio Code IDE

Download and install VSCode

Starting VSCode

VSCode extensions for Python

VSCode GUI tour

Run and debug code in VSCode

Creating and configuring projects

Create and open projects from the command line

Create and run a file

Debugging your code

Run configurations

Other ways to run code

Formatting code and saving a workspace

VSCode: The Quiz

Objects and classes

Introduction to classes and objects

A look under the hood

So what are classes and objects?

Creating your own classes and objects

Objects and classes: The Quiz

Constructors Quiz

Inheritance Quiz

Loops, ranges, and iterators

The importance of loops and iteration

How an iterator works

How to use iterators

Creating your own iterator

Iterators: The Quiz

The range function

What is the range function?

How to use range

Uncovering range: how it works

Range: The Quiz

Working with files

Files: introduction

How to open and read a file

The old fashioned way to open a file

Using the with statement

More ways to read a file

Writing to files

Write to a file

Append to a file

Working with files: The Quiz

Common file operations

About Unix file permissions

Exception handling

Introduction to exceptions

What is an exception?

The try and except keywords

Catching exceptions with try and except

Simple example: division by zero

Catching IOError

The finally and else blocks

Common Python exceptions

Exception best practices

Python Exceptions: The Quiz

Creating and raising exceptions

Create custom exceptions

Raising exceptions

Creating custom exceptions: The Quiz

Doing nothing with the pass statement

What is the pass keyword?

Why does Python need a pass keyword?

When and where to use pass

When not to use pass

Python’s pass statement: the quiz

Python data types

About data types

Using type() to check the type

Mutability: The Quiz

How to create and use a list

Creating and using lists

List comprehensions

List comprehensions quiz

Sorting lists: the quiz

List slicing quiz

Create and use a dictionary

What are valid keys and values?

Dictionary view objects

More ways to create a Python dictionary

A list of built-in dictionary methods

Dictionaries: The Quiz

How to create a set

Why sets are useful

Mathematical set operations

Python sets: overview

Frozensets and set indexing

How to create a tuple

Multiple assignment

Tuples: The Quiz

Floating point numbers

What is a Python float?

Working with floats

Float precision

Converting floats to other types

Floating point numbers: the quiz

Course project: building a TODO application

What we’ll build

Starting a new project

Iteration 1: A Loop

Iteration 2: parse commands

Iteration 3: implement commands and refactor our code

Iteration 4: Files, storing, and loading lists

Extra assignments

And now what?

Next steps in your learning journey

Where you are, and what’s still missing

Final words and one last request…

REPL: The Quiz

Python Fundamentals I Your First Steps in the Python REPL REPL: The Quiz

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Question 1 of 3

1. Question

What does REPL stand for?

Regular Expression Printing Loop

Read, Execute Python, Loop

Read, Evaluate, Print, Loop

Correct

Incorrect
Question 2 of 3

2. Question
Open the REPL and run the following calculation:
```
>>> (10 - 4) / 2
```
What’s the output?
8.0

3.0

3
Correct

Incorrect
Question 3 of 3

3. Question
What is the result of this expression:
```
3 * 4 / 3 + 1
```
Take into account the operator precedence. Feel free to ‘cheat’ by using the REPL!
5.0

3.0
Correct

Incorrect

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