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from __future__ import annotations

from uuid import NAMESPACE_OID, UUID, uuid5

[docs]NIL_UUID = UUID(int=0)
[docs]def generate_uuid(*values: str | None, namespace: UUID = NAMESPACE_OID) -> str: """ Convert input values to deterministic UUID string representation. This function is only intended to generate a hash which used as an identifier, not for any security use. Generates a UUID v5 (SHA-1 + Namespace) for each value provided, and this UUID is used as the Namespace for the next element. If only one non-None value is provided to the function, then the result of the function would be the same as result of ``uuid.uuid5``. All ``None`` values are replaced by NIL UUID. If it only one value is provided then return NIL UUID. :param namespace: Initial namespace value to pass into the ``uuid.uuid5`` function. """ if not values: raise ValueError("Expected at least 1 argument") if len(values) == 1 and values[0] is None: return str(NIL_UUID) result = namespace for item in values: result = uuid5(result, item if item is not None else str(NIL_UUID)) return str(result)

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