int() function in Python and Python3 converts a number in given base to decimal.
Syntax :
int(string, base)
Parameter :
string : consists of 1's and 0's base : (integer value) base of the number.
Returns :
Returns an integer value, which is equivalent of binary string in the given base.
Errors :
TypeError : Returns TypeError when any data type other than string or integer is passed in its equivalent position.
Code #1 :
# Python3 program for implementation # of int() function num = 13 String = '187' # Stores the result value of # binary "187" and num addition result_1 = int (String) + num print ( "int('187') + 13 = " , result_1, "\n" ) # Example_2 str = '100' print ( "int('100') with base 2 = " , int ( str , 2 )) print ( "int('100') with base 4 = " , int ( str , 4 )) print ( "int('100') with base 8 = " , int ( str , 8 )) print ( "int('100') with base 16 = " , int ( str , 16 )) |
Output :
int('187') + 13 = 200 int('100') with base 2 = 4 int('100') with base 4 = 16 int('100') with base 8 = 64 int('100') with base 16 = 256
Code #2 :
# Python3 program for implementation # of int() function # "111" taken as the binary string binaryString = "111" # Stores the equivalent decimal # value of binary "111" Decimal = int (binaryString, 2 ) print ( "Decimal equivalent of binary 111 is" , Decimal) # "101" taken as the octal string octalString = "101" # Stores the equivalent decimal # value of binary "101" Octal = int (octalString, 8 ) print ( "Decimal equivalent of octal 101 is" , Octal) |
Output :
Decimal equivalent of binary 111 is 7 Decimal equivalent of octal 101 is 65
Code #3 : Program to demonstrate the TypeError.
# Python3 program to demonstrate # error of int() function # when the binary number is not # stored in as string binaryString = 111 # it returns an error for passing an # integer in place of string decimal = int (binaryString, 2 ) print (decimal) |
Output :
Traceback (most recent call last): File "/home/d87cec4c0c33aad3bb6187858b40b734.py", line 8, in decimal = int(binaryString, 2) TypeError: int() can't convert non-string with explicit base
.
Application :
It is used in all the standard conversions. For example conversion of binary to decimal, octal to decimal, hexadecimal to decimal.
Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.
To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.