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Strings & text

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

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Strings & text easy

How to Swap Case of Every Character in Python

Swap uppercase to lowercase and lowercase to uppercase for every character in a string using Python's built-in swapcase() method.

string swapcase case conversion
Python
def swap_case(text):
    """
    Swap uppercase to lowercase and lowercase to uppercase 
    for every character in the given string.
    """
    return text.swapcase()

if __name__ == "__main__":
    sample = "Hello World! Python3.9"
    result = swap_case(sample)
    print(f"Input:  {sample}")
    print(f"Output: {r…
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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.