bool() Method Syntax

bool([x])

Parameters

• x: Any object that you want to convert into a boolean data type.

Return

It can return one of the two values. 

• It returns True if the parameter or value passed is True.
• It returns False if the parameter or value passed is False.

Here are a few cases, in which Python’s bool() method returns false. Except these all other values return True. 

• If a False value is passed.
• If None is passed.
• If an empty sequence is passed, such as (), [], ”, etc.
• If Zero is passed in any numeric type, such as 0, 0.0, etc.
• If an empty mapping is passed, such as {}.
• If Objects of Classes having __bool__() or __len()__ method, returning 0 or False.

Python bool() function is used to return or convert a value to a Boolean value i.e., True or False, using the standard truth testing procedure. 

Example