tf.compat.v1.flags.validator

A function decorator for defining a flag validator.

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Compat aliases for migration

See Migration guide for more details.

tf.compat.v1.app.flags.validator

tf.compat.v1.flags.validator(
    flag_name, message='Flag validation failed', flag_values=_flagvalues.FLAGS
)

Registers the decorated function as a validator for flag_name, e.g.

@flags.validator('foo') def _CheckFoo(foo): ...

See register_validator() for the specification of checker function.

Args
flag_name	str, name of the flag to be checked.
message	str, error text to be shown to the user if checker returns False. If checker raises flags.ValidationError, message from the raised error will be shown.
flag_values	flags.FlagValues, optional FlagValues instance to validate against.

Returns
A function decorator that registers its function argument as a validator.

Raises
AttributeError	Raised when flag_name is not registered as a valid flag name.