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Python hex() function is used to convert an integer to a lowercase hexadecimal string prefixed with “0x”. We can also pass an object to hex() function, in that case the object must have __index__() function defined that returns integer. The input integer argument can be in any base such as binary, octal etc. Python will take care of converting them to hexadecimal format.
Python hex() example
Let’s look into some simple examples of converting integer to hexadecimal number.
print(hex(255)) # decimal
print(hex(0b111)) # binary
print(hex(0o77)) # octal
print(hex(0XFF)) # hexadecimal
Output:
0xff
0x7
0x3f
0xff
Python hex() with object
Let’s create a custom class and define __index__() function so that we can use hex() function with it.
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
You can checkout complete python script and more Python examples from our GitHub Repository.
Reference: Official Documentation
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About the author
Java and Python Developer for 20+ years, Open Source Enthusiast, Founder of https://www.askpython.com/, https://www.linuxfordevices.com/, and JournalDev.com (acquired by DigitalOcean). Passionate about writing technical articles and sharing knowledge with others. Love Java, Python, Unix and related technologies. Follow my X @PankajWebDev
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This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License.- Table of contents
- Python hex() example
- Python hex() with object
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