Integer to Hexadecimal Conversion in Python

Question

a = 1
print hex(a)

The above gives me the output: 0x1

How do I get the output as 0x01 instead?

Answer 1

Here is f-string variant for Python 3.6+:

a = 1
print(f"{a:0>2x}")

Explanation of string formatting:

• :: format specifier
• 0: fill (with 0)
• >: right-align field
• 2: width
• x: hex type

Source: 6.1.3.1 Format Specification Mini-Language