About Lesson
Python Booleans
Booleans in Python represent the truth values True
and False
.
1. Boolean Values
Python has two built-in boolean values: True
and False
.
Example:
x = True
y = False
2. Boolean Operations
Python supports various boolean operations, including and
, or
, and not
.
Example:
a = True
b = False
result_and = a and b # False
result_or = a or b # True
result_not = not a # False
3. Comparison Operators
Comparison operators in Python return boolean values based on the comparison of two operands.
Example:
x = 5
y = 10
result_equal = x == y # False
result_not_equal = x != y # True
result_greater = x > y # False
result_less = x < y # True
result_greater_equal = x >= y # False
result_less_equal = x <= y # True
4. Boolean Conversion
Many values in Python can be evaluated as boolean expressions. For example, any non-zero number or non-empty container is considered True
.
Example:
x = 0
y = 10
z = []
result_x = bool(x) # False
result_y = bool(y) # True
result_z = bool(z) # False
Conclusion
Booleans are essential in Python for making decisions and controlling the flow of programs. Understanding boolean operations and comparison operators is crucial for writing effective Python code.