Course Content

Introduction to Python

1. First Acquaintance

The Very First Steps Comments Some Simple Math More Challenging Math Challenge Bringing It All Together

2. Variables and Types

Storing Numbers Naming Rules Using Variables Data Types Numbers Challenge Storing Text String Indexing Negative Indexing and Length String Slicing Challenge Concatenation

3. Conditional Statements

Boolean Data Type Challenge: Comparison Operators Combining Conditions Challenge: Logical Operators Membership Operators and Types Comparison Simple if/else Expressions Challenge: Grocery Store Challenge: Odd and Even if/elif/else Expressions Challenge: Grocery Store 2 Challenge: Positive, Negative or Zero

4. Other Data Types

What Is a List?List Methods Challenge Nested Lists Challenge What Is a Tuple?Tuple Methods Challenge Nested Tuples Challenge What Is a Dictionary?Challenge Dictionary Methods Challenge

5. Loops

while Loop Challenge for Loop Challenge Range Challenge Iterating Over Indexes Nested Loops

6. Functions

Built-in Functions Challenge Defining Your First Function Challenge if/else Statements in Functions Challenge Functions With No Return Challenge Modifying Functions Challenge Lambda Functions Challenge

Introduction to Python

Boolean Data Type

Welcome to section three! In this section, we'll dive into another Python data type: the boolean or logical type. Booleans can only have one of two values: True or False. This data type comes into play when evaluating logical conditions.

Here are the logical operators for comparison:

== equal to;
!= not equal to;
> greater than;
< less than;
>= greater than or equal to;
<= less than or equal to.

When you apply these operators, the result will be a boolean value: True if the condition is met, and False if it isn't. For instance, consider the following evaluations:

What do the results above signify? The first True indicates that 1 is equal to 1 (which is self-evident); the second False suggests that the strings "abc" and "aBc" differ due to the case sensitivity of the letter 'b'. The final False implies that 87*731 isn't greater than or equal to 98*712. In fact, 63597 is less than 69776.

Task

Now, let's evaluate the following:

Is first_integer variable less than or equal to second_integer? (It must return True if the first variable is less than or equal to the second, and False if it is greater than the second)
Is the string "text" not the same as "TEXT"?
Does the string length of "Python" equal 6?

Note
Printing an expression such as variable_1 >= variable_2 doesn't imply that variable_1 is genuinely greater than or equal to variable_2. It simply signifies that you're evaluating whether this statement is True or False. This operation does not alter the values of the variables in any manner.

Everything was clear?

Section 3. Chapter 1

Introduction to Python

Boolean Data Type

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