The hex() function converts an integer into a hexadecimal string. It’s useful for working with memory addresses, color codes, cryptography, and low-level programming.
Example
num = 255
print(hex(num))
# Output: '0xff'The output '0xff' represents 255 in hexadecimal (base 16).
Syntax
hex(number)- number → An integer to convert.
- Returns → A string starting with
'0x', indicating hexadecimal.
1. Converting Multiple Numbers to Hex
print(hex(10)) # Output: '0xa'
print(hex(100)) # Output: '0x64'
print(hex(500)) # Output: '0x1f4'Great for low-level number representation.
2. Removing the ‘0x’ Prefix
num = 255
print(format(num, "x"))
# Output: 'ff'Useful for color codes or compact hexadecimal values.
3. Using hex() in Memory Addressing
Python uses hex() to display memory locations.
x = 100
print(hex(id(x)))
# Output: Memory address in hex (varies)This is helpful in debugging memory-related operations.
4. Converting Negative Numbers
Hex supports negative numbers, keeping the - sign.
print(hex(-42))
# Output: '-0x2a'Useful for signed integer representations.
Key Notes
- ✔ Converts integers to hexadecimal format.
- ✔ Useful for memory, cryptography, and colors.
- ✔ Works with both positive and negative numbers.
- ✔ Prefix
0xcan be removed for cleaner output.
By using hex(), you can work with hexadecimal numbers efficiently, making it essential for programming, networking, and digital systems. 🚀