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Coding workflows · Canonical Base64 decoding
03
A concrete starting point
Decode only canonical standard Base64 strings. Test empty input, bad padding bits and embedded whitespace, rejecting alternate spellings instead of silently normalizing them.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Canonical Base64 decoding
A concrete starting point
import base64
def canonical_decode(text):
if not isinstance(text, str): raise ValueError("text required")
decoded = base64.b64decode(text, validate=True)
if base64.b64encode(decoded).decode("ascii") != text:
raise ValueError("noncanonical Base64")
return decodedThe example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.
