Boolean Data Type

• The Boolean data type is either True or False
• In python, Boolean variables are defined by True and False keywords
• In programming, one often need to know if an expression is True of False
• When two values are compared, the expression is evaluated and python returns Boolean answer

Example,

>>> print(10>9)
True

• Any string is True, except empty strings
• Any number is true, except 0
• Any list, tuple, set and dictionary are True, except empty ones

>>> bool(1)
True
>>> bool(0)
False

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