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Home > Python Guide > References > Methods and Functions > Python hex()
Methods and Functions


PYTHON HEX()



The python hex function is used to convert an integer to is an equivalent
hexadecimal string. 

The syntax of the python hex function is as follows:

hex(x)



Source Code

Table of content
1 hex() Parameter
2 Return Value from hex()


HEX() PARAMETER

The python hex function takes one argument as the input from the user. 

x- is an integer. The argument is either an int object or it has to define an
_index_() method that gives you an integer


RETURN VALUE FROM HEX()

The python hexadecimal function returns a hexadecimal string with the 0x
format. 

Here’s is an example for the same:

Source Code:

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print("10 in hexadecimal is: ", hex(10))

print("-5 in hexadecimal is", hex(-5))



val = hex(100) # returns string type

print(type(val))



Output



10 in hexadecimal is: 0xa

-5 in hexadecimal is: '-0x5'

<class 'str'>



                

To convert a floating-point number to a hexadecimal number, users can use the
float.hex(). 

Source Code:



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print("The equivalent value of the hexadecimal 3.9 is: ", float.hex(10.1)) # valid


Output:

0x1.4333333333333p+3

                



Errors:

In case of any errors, the TypeError exception is returned. 

What does hex do in Python?

The hex() in python is used to return a number in the hexadecimal format. 

Here are some examples of the python hex().

Example 1: How hex() works?

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number = 435

print(number, 'in hex =', hex(number))



number = 0

print(number, 'in hex =', hex(number))



number = -34

print(number, 'in hex =', hex(number))



returnType = type(hex(number))

print('Return type from hex() is', returnType)

Output

435 in hex = 0x1b3

0 in hex = 0x0

-34 in hex = -0x22

Return type from hex() is <class 'str'>



                

Example 2: Hexadecimal representation of a float

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number = 2.5

print(number, 'in hex =', float.hex(number))



number = 0.0

print(number, 'in hex =', float.hex(number))



number = 10.5

print(number, 'in hex =', float.hex(number))

Output

2.5 in hex = 0x1.4000000000000p+1

0.0 in hex = 0x0.0p+0

10.5 in hex = 0x1.5000000000000p+3



                

How do you write hex in python?

To derive a hexadecimal number, the hex() is used. The given number is converted
to a hexadecimal value using this function.

Program to convert the decimal value to a hexadecimal form

Source Code:

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numb1 = int(input("enter base 10 no\n"))



print("a. Decimal to Hexadecimal ")

print("b. Decimal to Octal")

print("c. Decimal to Binary")

 

print("Enter your choice :- ")

choice = input()
 

if choice is 'a':

 
    print("the number in hexadecimal is" + str(number) +

        " is " + hex(number).lstrip("0x").rstrip("L"))

         

if choice is 'b':

     

    print("the number in octal" + str(number) +

        " is " + oct(number).lstrip("0o").rstrip("L"))

         

if choice is 'c':

     

    print("the number i binary" + str(number) +

        " is "+bin(number).lstrip("0b").rstrip("L"))



Output : 

input variant a)

enter base 10 no

123

Decimal to Hexadecimal 
Decimal to Octal
Decimal to Binary
Enter your choice:- 

a

The number in hexadecimal is 123 is 7b



                

How do you find the hex value in Python?

The hex() function is a built-in Python function for converting an integer value
to its hexadecimal equivalent. Look at some examples below to understand the
working of the hex():

Example 1:

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print("The hexadecimal form of 23 is "

                            + hex(23))
                             

print(" 'a' in hexadecimal is" + hex(ord('a')))

       

print("The hexadecimal form of 3.9 is "

                        + float.hex(3.9))



Output : 


The hexadecimal form of 23 is 0x17

 'a' in hexadecimal is 0x61

The hexadecimal form of 3.9 is 0x1.f333333333333p+1



                

Example 2: The TypeError function is raised when any other datatype rather than
an integer is passed as the argument. 

Source Code:

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print("11.1 hexadecimal format is "

                            + hex(11.1))
Output : 

Traceback (most recent call last):

  File "/home/7e1ac7e34362fd690cdb72cf294502e1.py", line 2, in 

    print("11.1 in hexadecimal is "+hex(11.1))

The 'float' object cannot be read as an integer, which causes a TypeError.


                

How do you decipher hex to text in Python?

To convert hexadecimal in python to text, the user will have to implement the
bytes.fromhex() AND bytes.decode(). To construct a bytes object, use
bytes.fromhex(string) with a hexadecimal string without “0x” at the beginning as
a string. To convert this byte object to an ASCII version of the original
hexadecimal string, call bytes.decode(encoding) using “ASCII” as encoding.

Source Code



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# Remove the leading 0x from the string by slicing it.


hex_string = "0x616263"[2:]


bytes_object = bytes.fromhex(hex_string)

Convert to bytes object

ascii_string = bytes_object.decode("ASCII")

Convert to ASCII representation

print(ascii_string)


OUTPUT

abc

                



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METHODS AND FUNCTIONS

 * Python Standard Library Reference
 * Python Modules
 * Python classmethod()
 * Python CSV: Read and Write CSV files
 * Python Recursion (Recursive Function)
 * Python String isupper()
 * Python Format()
 * Python String isprintable()
 * Python String lstrip()
 * Python String maketrans()

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METHODS AND FUNCTIONS

 * Python Standard Library Reference
 * Python Modules
 * Python classmethod()
 * Python CSV: Read and Write CSV files
 * Python Recursion (Recursive Function)
 * Python String isupper()
 * Python Format()
 * Python String isprintable()
 * Python String lstrip()
 * Python String maketrans()



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