How can I get Python to use upper case letters when printing hexadecimal values?

Capital X (Python 2 and 3 using sprintf-style formatting):

print("0x%X" % value)

Or in python 3+ (using .format string syntax):

print("0x{:X}".format(value))

Or in python 3.6+ (using formatted string literals):

print(f"0x{value:X}")

python formatting hex uppercase

Just use upper().

intNum = 1234hexNum = hex(intNum).upper()print('Upper hexadecimal number = ', hexNum)

Output:

Upper hexadecimal number =  0X4D2

python formatting hex uppercase

By using uppercase %X:

>>> print("%X" % 255)FF

Updating for Python 3.6 era: Just use 'X' in the format part, inside f-strings:

print(f"{255:X}")

(f-strings accept any valid Python expression before the : - including direct numeric expressions and variable names).

CodeHunter