In this article, we will learn about the solution to the problem statement given below.
Problem statement − We are given a hexadecimal string, we need to convert it into its decimal equivalent.
We have two approaches to solve the problem−
Here we take the help of explicit type casting function i.e. integer. This function takes two arguments i.e. hex equivalent and base i.e. (16). This function is used to convert a hexadecimal string to its equivalent decimal in an integer type, which can be further typecasted back to string format.
#input string string = 'F' # converting hexadecimal string to decimal res = int(string, 16) # print result print("The decimal number associated with hexadecimal string is : " + str(res))
The decimal number associated with hexadecimal string is: 15
Here we use literal_eval function available in ast module, we can predict the base of given hexadecimal equivalent and then convert into its decimal equivalent. Here we use the concept of literal evaluation.
# using built-in module literal_eval from ast import literal_eval # initializing string test_string = '0xF' # converting hexadecimal string to decimal res = literal_eval(test_string) # print result print("The decimal number of the hexadecimal string is : " + str(res))
The decimal number of the hexadecimal string is: 15
All the variables are declared in the local scope and their references are seen in the figure above.
In this article, we have learned about converting given hex string into the decimal equivalent.