CertificateSet

class cometa.certificates.certificate_set.CertificateSet(ptr)[source]

Bases: Set[Certificate]

Represents a set of Cardano certificates.

This is a collection type that holds multiple Certificate objects. It is typically used within transactions to include multiple certificate operations in a single transaction.

__init__(ptr)[source]

Return type:: None

__enter__()[source]

Return type:: CertificateSet

__exit__(exc_type, exc_val, exc_tb)[source]

Return type:: None

__repr__()[source]

Return repr(self).

Return type:: str

__len__()[source]

Returns the number of certificates in the set.

Return type:: int

__iter__()[source]

Iterates over the certificates in the set.

Return type:: Iterator[Certificate]

__getitem__(index)[source]

Gets a certificate at the specified index.

Parameters:: index (int)
Return type:: Certificate

classmethod new()[source]

Creates a new empty certificate set.

Returns:: A new CertificateSet instance.
Raises:: CardanoError – If creation fails.
Return type:: CertificateSet

classmethod from_cbor(reader)[source]

Deserializes a CertificateSet from CBOR data.

Parameters:: reader (CborReader) – A CborReader positioned at the set data.
Returns:: A new CertificateSet deserialized from the CBOR data.
Raises:: CardanoError – If deserialization fails.
Return type:: CertificateSet

classmethod from_list(certificates)[source]

Creates a CertificateSet from an iterable of Certificate objects.

Parameters:: certificates (Iterable[Union[Certificate, CertificateUnion]]) – An iterable of Certificate or specific certificate type objects.
Returns:: A new CertificateSet containing all the certificates.
Raises:: CardanoError – If creation fails.
Return type:: CertificateSet

to_cbor(writer)[source]

Serializes the certificate set to CBOR format.

Parameters:: writer (CborWriter) – A CborWriter to write the serialized data to.
Raises:: CardanoError – If serialization fails.
Return type:: None

get(index)[source]

Gets the certificate at the specified index.

Parameters:: index (int) – The index of the certificate to retrieve.
Returns:: The Certificate at the specified index.
Raises:: CardanoError – If retrieval fails.
Return type:: Certificate

add(certificate)[source]

Adds a certificate to the set.

Parameters:: certificate (Union[Certificate, CertificateUnion]) – The Certificate to add. Can be either a Certificate instance or any specific certificate type (e.g., StakeRegistrationCert), which will be automatically converted.
Raises:: CardanoError – If adding fails.
Return type:: None

Example

>>> cert_set = CertificateSet.new()
>>> stake_reg = StakeRegistrationCert.new(credential)
>>> cert_set.add(stake_reg)  # Automatic conversion

to_cip116_json(writer)[source]

Serializes this certificate set to CIP-116 compliant JSON.

Parameters:: writer (JsonWriter) – The JsonWriter to write the JSON to.
Raises:: CardanoError – If serialization fails.
Return type:: None

__contains__(item)[source]

Checks if an item is in the set.

Parameters:: item (object)
Return type:: bool

isdisjoint(other)[source]

Returns True if the set has no elements in common with other.

Parameters:: other (Iterable[Certificate]) – Another iterable to compare with.
Returns:: True if the sets are disjoint.
Return type:: bool