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Workflows
Coding workflows · Canonical UUID text
03
A concrete starting point
Parse a lowercase canonical UUID string into sixteen bytes without inferring its version or identity. Check all-zero input and hexadecimal letters, rejecting uppercase, braces, misplaced hyphens and surrounding whitespace.
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 UUID text
A concrete starting point
import re
UUID_TEXT = re.compile(r"[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}")
def uuid_bytes(text):
if not isinstance(text, str) or not UUID_TEXT.fullmatch(text):
raise ValueError("canonical lowercase UUID required")
return bytes.fromhex(text.replace("-", ""))The 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.