Constraints union¶
-
class
pyasn1.type.constraint.
ConstraintsUnion
(*constraints)¶ Create a ConstraintsUnion logic operator object.
The ConstraintsUnion logic operator only succeeds if at least a single operand succeeds.
The ConstraintsUnion object can be applied to any constraint and logic operator objects.
The ConstraintsUnion object duck-types the immutable container object like Python
tuple
.Parameters: *constraints – Constraint or logic operator objects. Examples
class CapitalOrSmall(IA5String): ''' ASN.1 specification: CapitalOrSmall ::= IA5String (FROM ("A".."Z") | FROM ("a".."z")) ''' subtypeSpec = ConstraintsIntersection( PermittedAlphabetConstraint('A', 'Z'), PermittedAlphabetConstraint('a', 'z') ) # this will succeed capital_or_small = CapitalAndSmall('Hello') # this will raise ValueConstraintError capital_or_small = CapitalOrSmall('hello!')