Python | Ways to convert Boolean values to integer

Given a boolean value(s), write a Python program to convert them into an integer value or list respectively. Given below are a few methods to solve the above task.

Convert Boolean values to integers using int() 

Converting bool to an integer using Python typecasting.

# Initialising Values
bool_val = True
 
# Printing initial Values
print("Initial value", bool_val)
 
# Converting boolean to integer
bool_val = int(bool_val == True)

# Printing result
print("Resultant value", bool_val)
        

Output: 

Initial value True
Resultant value 1

Time Complexity: O(1)

Auxiliary Space: O(1)

Convert Boolean values to integers using the Naive Approach 

Converting bool to an integer using Python loop.

# Initialising Values
bool_val = True
 
# Printing initial Values
print("Initial value", bool_val)
 
# Converting boolean to integer
if bool_val:
    bool_val = 1
else:
    bool_val = 0
# Printing result
print("Resultant value", bool_val)
        

Output: 

Initial value True
Resultant value 1

Convert Boolean values to integers using NumPy 

In the case where a boolean list is present.

import numpy
# Initialising Values
bool_val = numpy.array([True, False])
 
# Printing initial Values
print("Initial values", bool_val)
 
# Converting boolean to integer
bool_val = numpy.multiply(bool_val, 1)
# Printing result
print("Resultant values", str(bool_val))

Output: 

Initial values [ True False]
Resultant values [1 0]

Convert Boolean values to integers using map() 

In a case where a boolean list is present.

# Initialising Values
bool_val = [True, False]
 
# Printing initial Values
print("Initial value", bool_val)
 
# Converting boolean to integer
bool_val = list(map(int, bool_val))

# Printing result
print("Resultant value", str(bool_val))

Output: 

Initial value [True, False]
Resultant value [1, 0]

Using List comprehension

This approach uses list comprehension to iterate through the list 'bool_val' and applies the int() function to each element, which converts the Boolean value to its integer equivalent (1 for True and 0 for False).

# Initialising Values
bool_val = [True, False]

# Printing initial Values
print("Initial values", bool_val)

# Converting boolean to integer using list comprehension
bool_val = [int(b) for b in bool_val]

# Printing result
print("Resultant values", str(bool_val))
#This code is contributed by Edula Vinay Kumar Reddy

Initial values [True, False]
Resultant values [1, 0]

Time complexity: O(n)

Space complexity: O(n)

Using the ternary operator to convert boolean to integer:

Approach:

Create a boolean variable b with value True
Use the ternary operator to check if b is True. If it is, assign 1 to the integer variable i, otherwise assign 0.
Print the value of i.

b = True
i = 1 if b else 0
print(i)

1

Time Complexity: O(1)
Auxiliary Space: O(1)