{"id":156,"date":"2020-10-03T23:51:23","date_gmt":"2020-10-03T23:51:23","guid":{"rendered":"https:\/\/www.pythontutorial.net\/?page_id=156"},"modified":"2025-03-26T06:39:24","modified_gmt":"2025-03-26T06:39:24","slug":"python-boolean","status":"publish","type":"page","link":"https:\/\/www.pythontutorial.net\/python-basics\/python-boolean\/","title":{"rendered":"Python Boolean"},"content":{"rendered":"\n

Summary<\/strong>: in this tutorial, you’ll learn about the Python boolean data type, falsy and truthy values.<\/p>\n\n\n\n

Introduction to Python Boolean data type #<\/a><\/h2>\n\n\n\n

In programming, you often want to check if a condition is true or not and perform some actions based on the result.<\/p>\n\n\n\n

To represent true and false, Python provides you with the boolean data type. The boolean value has a technical name as bool<\/a><\/code>.<\/p>\n\n\n\n

The boolean data type has two values: True<\/code> and False<\/code>. <\/p>\n\n\n\n

Note that the boolean values True<\/code> and False<\/code> start with the capital letters (T<\/code>) and (F<\/code>). <\/p>\n\n\n\n

The following example defines two boolean variables<\/a>:<\/p>\n\n\n

is_active = True<\/span>\nis_admin = False<\/span><\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
x = 20<\/span>\ny = 10<\/span>\n\nresult = x > y\nprint(result)\n\nresult = x < y\nprint(result)<\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
Output:<\/p>\n\n\n
True<\/span>\nFalse<\/span><\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
x = 'a'<\/span>\ny = 'b'<\/span>\n\nresult = x > y\nprint(result)\n\nresult = x < y\nprint(result)<\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
Output:<\/p>\n\n\n
False<\/span>\nTrue<\/span><\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
The bool() function #<\/a><\/h2>\n\n\n\n
To find out if a value is True<\/code> or False<\/code>, you use the bool()<\/code> function. For example:<\/p>\n\n\n
result = bool('Hi'<\/span>)\nprint(result)\n\nresult = bool(100<\/span>)\nprint(result)\n\nresult = bool(0<\/span>)\nprint(result)<\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
Output:<\/p>\n\n\n
True<\/span>\nTrue<\/span>\nFalse<\/span><\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
The output indicates some values evaluate to True<\/code> and the others evaluate to False<\/code>.<\/p>\n\n\n\n
Falsy and Truthy values #<\/a><\/h2>\n\n\n\n
When a value evaluates to True<\/code>, it’s truthy. If a value evaluates to False<\/code>, it’s falsy.<\/p>\n\n\n\n
The following are falsy values in Python:<\/p>\n\n\n\n
Try it<\/a><\/p>\n\n\n\n
Try it<\/a><\/p>\n\n\n\n
Also, comparing two strings<\/a> results in a boolean value:<\/p>\n\n\n
Try it<\/a><\/p>\n\n\n\n
When you compare two numbers<\/a>, Python returns the result as a boolean value. For example:<\/p>\n\n\n