The hex() function helps for the conversion of the given number into its corresponding hexadecimal string format. The returned hexadecimal string must have the prefix as '0x'.
hex(number) #Where number shows a integer number
Takes only one parameter. If we are passing an object as the parameter to hex() function that object must have __index__() function defined that returns integer.
| Parameter | Description | Required / Optional |
|---|---|---|
| object | int object or it has to define __index__() method that returns an integer | Optional |
| integer number | can be in any base such as binary, octal, etc | Optional |
For getting a hexadecimal representation of a float number needs to use float.hex() method.
| Input | Return Value |
|---|---|
| Integer | hexadecimal format |
| float | hexadecimal format |
| object | hexadecimal format |
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
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
class Data:
id = 0
def __index__(self):
print('__index__ function called')
return self.id
d = Data()
d.id = 100
print(hex(d))
Output:
__index__ function called 0x64
