"Python Essentials" is a comprehensive course designed for college preparation, offering an engaging and practical introduction to Python programming. This course covers fundamental topics such as variables, data types, string operations, conditionals, loops, and more. With a focus on real-world applications, learners will develop a solid foundation in Python, preparing them for further studies or a career in programming.

Print to console

Console output

Brave new world

Variables introduction

Data Types in Python

A warm welcome

String interpolation

Python naming convention

The resistance base

Comments in Python

Python problems practice

The mission

If statement

Bool type introduction

Back to the streets

Reading From Console in Python

Nested conditionals

Who is your friend?

Introduction to for loop

Introduction to a float type

The basement

Introduction to while loop

Introduction to functions

Reparing Noname

Introduction to lists

Lists - advanced operations

Victory is close

Modules

Modulo operation

Python test

Wonderland

Python Essentials

A college preparation python course.

I woke up because of people talking next to my bed. One of them took two steps in my direction.

"Hi, my name is Ritchie. I am the leader of this resistance base. Do you want coffee?"
"Oh yes! I would like some coffee. And a little bit of explanation. Is Noname a program? Did you create it?" I had lots of questions in my head. 
"Yes, Noname is a program, and yes, I wrote it," Ritchie answered calmly. "One of Noname's purposes was to bring you here."
"OK, what are our plans then?"
"We need to prepare you for tomorrow's mission." His answer was short and precise, but not informative enough. 
"You say mission" In my current state, I'm not up for any missions. Do I have a choice to avoid it?" I asked hopefully.
"Absolutely no chance. The mission starts tomorrow at 8:00 am," Ritchie said with a note of finality, "and here is your coffee, by the way," he added, passing me a cup.
The coffee was not that good, without milk, and probably very old, but it was still coffee. Ritchie continued:
"I've heard you have already been introduced to strings in Python. There are a few things to add though, so let's dive in."

Ritchie started: "You already know one way of joining strings together - concatenation. It turns out, you can use concatenation even for strings and numbers"

"Let me guess, like this?" I asked and showed Ritchie my code.

"Not really. Here, Python would not understand, how to add a 

. These are two different data types, and operation '

' is not defined from them," Ritchie explained.

"What can I do then? I want Python to treat '

' as a string in this code," I was confused.

To treat a number as a string, you should use the str() function.

Place the number inside the parenthesis, and it will be treated as a string! 

"Yes, I'm not sure what this str is, and why there are parenthesis, but I can use it anyway."

"I understand, some things will be explained later, but for now, just use 

I'll explain what it is a little later. And now, try using it yourself."

"This method is ok, but it can get cumbersome. Look here," Ritchie showed me a new snippet of code.

"Yeah, this looks like a lot of code to achieve a simple task, and also I'm getting lost in all those pluses," I agreed.

"Exactly! Not only you. To make this simpler, Python has so-called 'f-strings'. 

 allow you to inject variables into strings. The whole process is called 

To use string interpolation via f-strings, you should start your string with a letter '

' and put every variable that you want to insert into the string in the curly brackets: 

"Wow, this code is much more concise and easy to read! Even without knowing programming, one would get what this code does," I exclaimed.

"Yes, Teo. There is so much for you to learn still... But as for now, you are making progress. Now go ahead, and solve the previous task using f strings, and string interpolation."

"This wasn't that hard, right?" Richie asked.

"Yes, I think I am starting to get this whole programming thing," I answered.
"We will see. I will leave you with some more practice to sharpen your skills. Convert the caffeine in your blood into code, as many programmers do!"

Enhance your Python coding with string interpolation methods. This lesson introduces you to efficient ways of embedding variables within strings, essential for dynamic coding on CodeEasy.io.

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