Python bool()

Converts a value to a Boolean True or False value.

Syntax

bool(object)
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Standard truth testing procedures are applied to values to determine their Boolean value. Statements are True if they do not meet one or more of these criteria:

• If a False boolean value is passed.
• If None is passed.
• If a quantitative zero is passed, such as 0 or 0.0.
• If an empty sequence or mapping is passed, such as (), [], or {}.
• If Objects of Classes having bool() or len() method, returning 0 or False are passed.

Example 1

Use bool() function to return the boolean expression of the string 'True':

print(bool('True'))
# Output: True
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Example 2

Use bool() function to return the boolean expression of the string 'False':

print(bool('False'))
# Output: False
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Example 3

Use bool() to return the boolean expression of the integer 0:

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