Introduction to Booleans in Python

What is a Boolean?

In Python, we have a data type called “Boolean” that can only have two possible values: True (correct) and False (incorrect). These principles are actually the basis for working with conditional statements and control flow in programming. For example, when you want to decide whether a certain code should execute or not, Booleans are utilized. This makes Booleans very important and practical.

Python and Booleans

In Python, Booleans are actually subsets of a series of correct numbers, namely True is equivalent to the number one and False is equivalent to the number zero. This also means you can work with Booleans just like you can with correct numbers. For instance, you can add them together or use them in comparisons. This is one of the interesting features of the Python language that makes working with Booleans quite flexible.

Using Comparison Operators

Booleans are heavily used in combination with comparison operators such as == (equality), != (inequality), >, <, >= and <=. These operators are used to compare different values, and the results will be of the Boolean type, which can be depended upon in different circumstances.

Logical Operators

In addition to comparison operators, logical operators such as and, or, and not are used to create and combine conditional statements. The operator and returns True if both Boolean values are correct, while or returns True if at least one of the values is correct.

Conditional Statements and Booleans in Action

Conditional statements such as if and while involve Booleans heavily. In these statements, the execution of code and the flow of the program depend on the evaluation of the Boolean expressions. This allows developers to implement control operations based on the evaluation of Boolean expressions.

is_daytime = True
weather_is_nice = False

if is_daytime and weather_is_nice:
    print("Let's go for a walk!")
else:
    print("Maybe another time.")
    

Code Explanation:

is_daytime = True
This line determines whether it is daytime or not, and assigns the Boolean True to it.

weather_is_nice = False
This line determines whether the weather is nice or not, and assigns the value False to it.

if is_daytime and weather_is_nice:
This is a conditional statement that checks whether both values is_daytime and weather_is_nice are correct or not.

print("Let's go for a walk!")
This line will execute if the condition is correct and will send a message to the console.

else:
This block will execute if the previous condition was not met.

print("Maybe another time.")
If the condition was not met, this message will be printed to the console.