Python Program to Check if the Substring is Present in the Given String

This is a Python Program to check if a substring is present in a given string.

The program takes a string and checks if a substring is present in the given string.

1. Take a string and a substring from the user and store it in separate variables.
2. Check if the substring is present in the string using find() in-built function.
3. Print the final result.
4. Exit.

Here is source code of the Python Program to calculate the length of a string without using library functions. The program output is also shown below.

string=raw_input("Enter string:")
sub_str=raw_input("Enter word:")
if(string.find(sub_str)==-1):
      print("Substring not found in string!")
else:
      print("Substring in string!")

1. User must enter a string and a substring from the user and store it in separate variables.
2. It is then checked if the substring is present in the string using find() in-built function.
3. An if statement is used to make the decision and the final result is printed.

 
Case 1:
Enter string:Hello world
Enter word:world
Substring in string!
 
Case 2:
Enter string:Hello world
Enter word:apple
Substring not found in string!

Sanfoundry Global Education & Learning Series – Python Programs.

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