Python: Find the substrings within a string

Last update on March 31 2025 12:57:27 (UTC/GMT +8 hours)

21. Find Substrings

Write a Python program to find the substrings within a string.

Sample text:
'Python exercises, PHP exercises, C# exercises'
Pattern:
'exercises'

Note: There are two instances of exercises in the input string.

Sample Solution:

Python Code:

import re
text = 'Python exercises, PHP exercises, C# exercises'
pattern = 'exercises'
for match in re.findall(pattern, text):
    print('Found "%s"' % match)
	

Sample Output:

Found "exercises"                                                                                             
Found "exercises"                                                                                             
Found "exercises"   

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to extract all occurrences of a specific substring pattern from a text and print them.
• Write a Python script to search a string for any substrings that match a given pattern and then list them.
• Write a Python program to identify and print all substrings within a string that are enclosed by specific delimiters.
• Write a Python program to scan a text for substrings that meet certain criteria and then return a list of those substrings.

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to search a literals string in a string and also find the location within the original string where the pattern occurs.
Next: Write a Python program to find the occurrence and position of the substrings within a string.