Base64 in Python: encode, decode, urlsafe_b64encode
Complete guide to Python's base64 module: b64encode, b64decode, urlsafe variants, encoding bytes vs strings, and handling padding errors.
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Tags: encoding, python, base64
Base64 in Python: encode, decode, and urlsafe_b64encode Explained Python's module is part of the standard library — no pip install required. It covers standard Base64, URL-safe Base64, Base32, Base16, and more. This guide focuses on the functions you'll actually use: , , , and , plus the file encoding patterns that trip people up. --- The core concept: Base64 works on bytes, not strings This is the single most important thing to understand before writing any Base64 code in Python. The functions accept and return objects, not . If you pass a string, you'll get a . The return value is also . To get a back, call on the result. --- b64encode and b64decode Encoding Decoding The parameter By default, silently ignores invalid characters. This is a common source of bugs — you think you're…
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