Python Boolean Data Type

It is an immutable data type.

Boolean represents the data type bool.

Boolean data type has only 2 values True and False.

a=True

print(a)

print(type(a))

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output:

True

<class 'bool'>

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Description:-

type(10) This statement displays that the variable a is a Boolean data type.

<class 'bool'> is a Boolean data type.

Note:-

When you use the values True and False the first letter must always be a capital letter, otherwise you will get an error.

Let's see how else this Boolean data type can be used.

True -> 1

False -> 0

Boolean Data Types Values

print(True+True)

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output:

2

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Description:-

The statement True + True displays a value of two on the output screen. This is because Boolean data type has 1 for True and 0 for False.

So when we add True + True we get a value of 2.

print(True+False)

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output:

1

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Description:-

Next when we add True + False we get the value 1.

print(True*15)

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output:

15

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Description:-

For the statement True*15, the output displays 15.

As we have already seen, True has a value of 1. That's why True*15 gives us a value of 15.

print(int(True))

print(int(False))

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output:

1

0

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Description:-

int(True) -> First it converts the value given inside the int function to an integer. Here we have given the value true inside the int() function. Since True has a value of 1, we get an output of 1.

int(False) -> False has a value of 0 so the int() function gives us 0 in output.

print(bool("good"))

print(bool())

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output:

True

False

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Description:-

bool(“good”) -> In this statement, the string “good” is given inside the method bowl, so it displays the value True on the output screen.

bool(“”) -> Here no value is given inside the bool(“”) method so only quotes are given so it gives us False value.

print(bool(["good"]))

print(bool([]))

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output:

True

False

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Description:-

bool([“good”]) -> Here a list is given inside the method called bool. Inside that list the list item called good is given. So the method called bool returns the value True.

bool([]) -> Here an empty list is given inside the bool() method, so the bool method() returns the value False.

print(bool((1,2,3)))

print(bool()))

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output:

True

False

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Description:-

bool((1,2,3)) – where a tuple is given inside the bool() method. Because the value (1,2,3) is given inside that tuple, the bool( ) method returns the value True.

bool(()) – Here an empty tuple is given inside the bool() method, so the bool() method returns the value False.

print(bool({1:"java"}))

print(bool({}))

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output:

True

False

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Description:-

bool({1:”Java”}) -> In this a dictionary is given inside the bool() method. The value {1:”Java”} is given inside this dictionary. So bool() method gives us True as output.

bool({}) -> Here an empty dictionary is given inside the bool method, so it returns False.