Reference library

Strings & text

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

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Strings & text easy

How to Pad a String with Zeros in Python

Pad a string to a fixed width by left-filling it with zeros using the built-in str.zfill method.

strings padding zfill
Python 
def pad_zeros(s, width):
    return s.zfill(width)

if __name__ == "__main__":
    print(repr(pad_zeros("42", 6)))
    print(repr(pad_zeros("-7", 5)))
    print(repr(pad_zeros("hello", 10)))
    print(repr(pad_zeros("123", 3)))
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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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