What is the hexdigits constant in Python?

The string module in Python

The string module in Python is a collection of different constants.

The hexdigits constant

The hexdigits constant in the string module contains all the ASCII hexadecimal digits.

The constant’s value is as follows:

0123456789abcdefABCDEF

Syntax

string.hexdigits

As hexdigits is a constant, we can access it via the string module name.

Example 1

Let’s have a look at the code below:

Explanation

• Line 1: We import the string module.
• Line 3: We store the output of string.hexdigits in the hexdigits_output variable.
• Line 5: We print hexdigits_output.

Example 2

Let’s have a look at the code below:

Explanation

• Line 1: We import the string module.
• Lines 3–9: We define a method called is_hexdigits_only that accepts a string as the parameter. It also checks whether or not the input string contains only ASCII hexadecimal digits.
• Line 11: We define a string called str_to_check_1 that contains only ASCII hexadecimal digits.
• Line 12: We invoke the is_hexdigits_only method, and pass str_to_check_1 as a parameter.
• Line 14: We define a string called str_to_check_2 that contains lowercase and uppercase ASCII letters and digits.
• Line 15: We invoke the is_hexdigits_only method, and pass str_to_check_2 as a parameter.