Python Projects for Beginners a ten-Week Bootcamp Approach to Python Programming

Code Blocks and Indentation

In most other programming languages, indentation is used only to help make the code look pretty. For Python though, it is required for indicating a block of code. Let’s take our previous code from the “Handling Errors” section. The two lines after our try statement are indented and are known as blocks of code. These lines belong to the try statement because they are directly indented after the statement. The same goes for our other print statement within the except block. It’s the reason that our nonvalid print statement only runs if the except block runs. All blocks of code need to be connected to a statement; you can’t indent a section randomly.
Note The indents must be consistent. It does not always need to be four spaces; however, a tab is four spaces, so it's usually easier to indent with tabs.

MONDAY EXERCISES

1. 
   Converting: Try converting a string of “True” to a boolean, and then output its type to make sure it converted properly.
   
2. 
   Sum of Inputs: Create two input statements, and ask the user to enter two numbers. print the sum of these numbers out.
   
3. 
   Car Information: Ask the user to input the year, make, model, and color of their car, and print a nicely formatted statement like “2018 Blue Chevrolet silverado.”
   

Today was an important step in covering user input, how to convert from one data type to another, and how to handle errors.
Tuesday: If Statements
Today we’ll learn all about how to make decisions in our code. This will give us the ability to have our programs decide what lines of code to run, depending on what the user inputs, calculations, etc. This is the most important lesson of this week. Be sure to spend a good amount of time going on today’s lesson.
To follow along with this lesson, let’s continue from our previous notebook file
“Week_03” and simply add a markdown cell at the bottom that says, “If Statements.”