Reference library

Strings & text

Format, split, join, parse, and clean text — everyday Python string patterns.

1 match
Strings & text easy

How to Check if a String Ends with a File Extension in Python

This code checks whether a filename ends with any of a list of file extensions, handling case insensitivity.

file-extension string-methods endswith
Python 
def ends_with_extension(filename, extensions):
    """Check if a filename ends with any of the given extensions."""
    lower_name = filename.lower()
    return any(lower_name.endswith(ext.lower()) for ext in extensions)

if __name__ == "__main__":
    # Test cases
    test_files = ["report.pdf", "image.PNG", "script.…
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Strings & text — Python code examples

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This page collects strings & text snippets — short, copy-ready Python you can paste into our free online IDE and run without installing anything. Each sample includes a plain-English explanation and the full source code.

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Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.

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