Solution Exercise 58: python program that replace all prentheses by brackets within given text

Exercise 58

Write a Python program as a function which takes as parameter a string s and which returns another string obtained from s by replacing the possibly existing parentheses '(' and ')' in the string s with square brackets '[' and ']'. Example if s = "Python (created by Guido van Rossam) is oriented programming language (oop)." The function must returns: "Python [created by Guido van Rossam] is oriented programming language [oop]"

Solution

def transform(s):
    
    # initializing the transformed string
    transformed = ""
    
    for x in s:
        if x == '(':
            transformed = transformed + '['
        elif x == ')':
            transformed = transformed + ']'
        else:
            transformed = transformed + x
    return transformed

s = "Python (created by Guido van Rossam) is oriented programming language (oop)."

print(transform(s))
# The output is : Python [created by Guido van Rossam] is oriented programming language [oop].