Solution Exercise 72 : python algorithm to examin if a substring is present within a given string

Exercise 72

Write a python function which examine if a particular substring occurs within a given string.

Solution

"""
the function is_substring_present takes two arguments: string, which represents the given string, and sub, which represents the substring that we want to check if it occurs within string.
"""
# Python function to check if a particular substring occurs within a given string
def is_substring_present(string, sub):
    if sub in string:
        return True
    else:
        return False

# Example of use of this algorithm

string = "Python programming language"
sub = "prog"

if is_substring_present(string, sub):
    print(f"{sub} is present in {string}")
else:
    print(f"{sub} is not present in {string}")
# output: 'prog' is present in 'Python programming language'

Younes Derfoufi
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