Integer type

class pyasn1.type.univ.Integer(value=NoValue(), tagSet=TagSet(), subtypeSpec=ConstraintsIntersection(), namedValues=NamedValues())

Create Integer type or object.

Integer objects are immutable and duck-type Python int objects.

Parameters:

• value (int, str or Integer object) – Python integer or string literal or Integer class instance.
• tagSet (TagSet) – Object representing non-default ASN.1 tag(s)
• subtypeSpec (ConstraintsIntersection) – Object representing non-default ASN.1 subtype constraint(s)
• namedValues (NamedValues) – Object representing non-default symbolic aliases for numbers

Raises:

: :py:class:`pyasn1.error.PyAsn1Error` – On constraint violation or bad initializer.

Note

The Integer type models an arbitrary integer. INTEGER values can be positive, negative, or zero, and can have any magnitude.

clone(value=NoValue(), tagSet=TagSet(), subtypeSpec=ConstraintsIntersection(), namedValues=NamedValues())

Create a copy of a Integer type or object.

Any parameters to the clone() method will replace corresponding properties of the Integer object.

Parameters:

• value (int, str or Integer object) – Initialization value to pass to new ASN.1 object instead of inheriting one from the caller.
• tagSet (TagSet) – Object representing ASN.1 tag(s) to use in new object instead of inheriting from the caller
• subtypeSpec (ConstraintsIntersection) – Object representing ASN.1 subtype constraint(s) to use in new object instead of inheriting from the caller
• namedValues (NamedValues) – Object representing symbolic aliases for numbers to use instead of inheriting from caller

Returns:

new instance of Integer type/value

subtype(value=NoValue(), implicitTag=Tag(), explicitTag=Tag(), subtypeSpec=ConstraintsIntersection(), namedValues=NamedValues())

Create a copy of a Integer type or object.

Any parameters to the subtype() method will be added to the corresponding properties of the Integer object.

Parameters:

• value (int, str or Integer object) – Initialization value to pass to new ASN.1 object instead of inheriting one from the caller.
• implicitTag (Tag) – Implicitly apply given ASN.1 tag object to caller’s TagSet, then use the result as new object’s ASN.1 tag(s).
• explicitTag (Tag) – Explicitly apply given ASN.1 tag object to caller’s TagSet, then use the result as new object’s ASN.1 tag(s).
• subtypeSpec (ConstraintsIntersection) – Add ASN.1 constraints object to one of the caller, then use the result as new object’s ASN.1 constraints.
• namedValues (NamedValues) – Add given object representing symbolic aliases for numbers to one of the caller, then use the result as new object’s named numbers.

Returns:

new instance of Integer type/value

tagSet = TagSet((), Tag(tagClass=0, tagFormat=0, tagId=2))

Set (on class, not on instance) or return a TagSet object representing ASN.1 tag(s) associated with Integer type.

subtypeSpec = ConstraintsIntersection()

Set (on class, not on instance) or return a ConstraintsIntersection object imposing constraints on Integer type initialization values.

namedValues = NamedValues(())

Default NamedValues object representing symbolic aliases for numbers

effectiveTagSet

For Integer type is equivalent to tagSet

isSameTypeWith(other, matchTags=True, matchConstraints=True)

Examine Integer type for equality with other ASN.1 type.

ASN.1 tags (tag) and constraints (constraint) are examined when carrying out ASN.1 types comparison.

No Python inheritance relationship between PyASN1 objects is considered.

Parameters:other (a pyasn1 type object) – Class instance representing ASN.1 type. Returns:bool – True if other is Integer type, False otherwise.

isSuperTypeOf(other, matchTags=True, matchConstraints=True)

Examine Integer type for subtype relationship with other ASN.1 type.

ASN.1 tags (tag) and constraints (constraint) are examined when carrying out ASN.1 types comparison.

No Python inheritance relationship between PyASN1 objects is considered.

Parameters:other (a pyasn1 type object) – Class instance representing ASN.1 type. Returns:bool – True if other is a subtype of Integer type, False otherwise.

isValue

Indicate if Integer object represents ASN.1 type or ASN.1 value.

In other words, if isValue is True, then the ASN.1 object is initialized.

Returns:bool – True if object represents ASN.1 value and type, False if object represents just ASN.1 type.

Note

There is an important distinction between PyASN1 type and value objects. The PyASN1 type objects can only participate in ASN.1 type operations (subtyping, comparison etc) and serve as a blueprint for serialization codecs to resolve ambiguous types.

The PyASN1 value objects can additionally participate in most of built-in Python operations.

tagMap

Return a TagMap object mapping ASN.1 tags to ASN.1 objects within callee object.