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Strings & text

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

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Strings & text easy

Remove Substring Occurrences Case-Insensitively in Python

This code removes every case-insensitive occurrence of a given substring from a text string using a simple looping approach.

strings case-insensitive substring
Python 
def remove_occurrences_ci(text: str, substring: str) -> str:
    """Remove all case-insensitive occurrences of substring from text."""
    if not substring:
        return text
    
    result = []
    i = 0
    lower_text = text.lower()
    lower_sub = substring.lower()
    sub_len = len(substring)
    
    while i <…
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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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