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Python | hex method

Built-in Functions
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Documentation
schedule Jul 1, 2022
Last updated
local_offer Python
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Python's hex(~) method converts an integer number to a lowercase hexadecimal string prefixed with "0x". If the provided input is not an integer, it must implement a __index__() method to return an integer.

Parameters

1. x | integer

The integer number to convert to a lowercase hexadecimal string.

Return value

The converted hexadecimal string of the integer prefixed with "0x".

Examples

Basic usage

To return the lowercase hexadecimal string for 87:

hex(87)
'0x57'

Note that "0x" just indicates that it is a hexadecimal string.

__index__() method

To use hex(~) method with input that implements __index__() method:

class score:
james = 20
sally = 40
tom = 30
def __index__(self):
return self.james + self.sally + self.tom
hex(score())
'0x5a'

We provide an instance of score class as input to the hex(~) method. Although the instance itself is not an integer, as it returns an integer (sum of james + sally + tom) which in this case is 90, hex(~) returns the hexadecimal string for 90.

TypeError

If we provide input other than an integer:

hex('Hi')
TypeError: 'str' object cannot be interpreted as an integer
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Published by Arthur Yanagisawa
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