class pyasn1.type.namedtype.DefaultedNamedType(name, asn1Object, openType=None)

Create named field object for a constructed ASN.1 type.

The DefaultedNamedType object represents a single name and ASN.1 type of a constructed ASN.1 type.

DefaultedNamedType objects are immutable and duck-type Python tuple objects holding name and asn1Object components.

  • name (str) – Field name
  • asn1Object – ASN.1 type object


The DefaultedNamedType class models named field of a constructed ASN.1 type which has a default value.

The DefaultedNamedType objects are normally utilized by the NamedTypes objects to model individual fields of the constructed ASN.1 types.