ReferenceNu

forms

Native Form layer.

Module nu.forms.

Native Form layer.

A Form is what a fabric location holds (an Int, a Str, a Dict, a ToList) and the fluent typed surface for building Nu over it. The base mixin Form and the passthrough TypedNu live in nu.lang (re-exported here for convenience); the sentinel predicates (IsEmpty / IsInvalid) live in nu.core.

Concrete primitive Forms live in primitives/, concrete collection Forms in collections/ (with abstract contracts in collections/abc/).

Modules

Module	What
`nu.forms.collections.abc`	Generic collection interfaces and interactions.

nu.lang.forms

Module nu.lang.forms.

Form and TypedNu - the type-wrapping layer.

Name	Sort	Call	Meaning
TypedNu	`scalar_query`	`TypedNu()`	Transparent ScalarQuery passthrough carrying a python type tag `T`.

primitives.any_

Module nu.forms.primitives.any_.

Any - dynamic/unknown type interface.

Name	Sort	Call	Meaning
Any	`scalar_query`	`Any()`	Wildcard interface. Full operator surface, no promise about the runtime type.

primitives.bool_

Module nu.forms.primitives.bool_.

Bool - boolean interface.

Name	Sort	Call	Meaning
Bool	`scalar_query`	`Bool()`	Boolean interface. Logical + comparable.

primitives.bytes_

Module nu.forms.primitives.bytes_.

Bytes - bytes interface.

Name	Sort	Call	Meaning
Bytes	`scalar_query`	`Bytes()`	Bytes interface. Sliceable + comparable + logical + bytes methods.

collections.dict_

Module nu.forms.collections.dict_.

Dict - dict interface.

Name	Sort	Call	Meaning
Dict	`scalar_query`	`Dict()`	Dict interface. Mutable mapping + comparable.

collections.views

Module nu.forms.collections.views.

Dict view interfaces - DictKeys, DictValues, DictItems.

Name	Sort	Call	Meaning
DictItems	`scalar_query`	`DictItems()`	View of a Dict's `(key, value)` pairs, produced by `dict.items()`.
DictKeys	`scalar_query`	`DictKeys()`	View of a Dict's keys, produced by `dict.keys()`.
DictValues	`scalar_query`	`DictValues()`	View of a Dict's values, produced by `dict.values()`.

primitives.sentinel_

Module nu.forms.primitives.sentinel_.

Sentinel interfaces - SentinelForm, EmptyForm, InvalidForm.

Name	Sort	Call	Meaning
EmptyForm	`scalar_query`	`EmptyForm()`	Wraps EMPTY, the address-resolved-to-nothing sentinel.
InvalidForm	`scalar_query`	`InvalidForm()`	Wraps INVALID, the operation-not-applicable sentinel.
SentinelForm	`scalar_query`	`SentinelForm()`	Base for the sentinel interfaces, EmptyForm and InvalidForm.

primitives.float_

Module nu.forms.primitives.float_.

Float - float interface.

Name	Sort	Call	Meaning
Float	`scalar_query`	`Float()`	Float interface. Numeric + comparable + logical.

collections.set_

Module nu.forms.collections.set_.

Set, FrozenSet - set interfaces.

Name	Sort	Call	Meaning
FrozenSet	`scalar_query`	`FrozenSet()`	FrozenSet interface. Immutable set + comparable.
Set	`scalar_query`	`Set()`	Set interface. Mutable set + comparable.

primitives.int_

Module nu.forms.primitives.int_.

Int - integer interface.

Name	Sort	Call	Meaning
Int	`scalar_query`	`Int()`	Integer interface. Full numeric + comparable + logical + bitwise.

collections.iterator_

Module nu.forms.collections.iterator_.

Iterator - lazy iterator interface.

Name	Sort	Call	Meaning
Iterator	`scalar_query`	`Iterator()`	Lazy stream over another form's elements.

collections.list_

Module nu.forms.collections.list_.

List - list interface.

Name	Sort	Call	Meaning
List	`scalar_query`	`List()`	List interface. Mutable sequence + comparable.

primitives.none_

Module nu.forms.primitives.none_.

None_ - none interface.

Name	Sort	Call	Meaning
None_	`scalar_query`	`None_(source=None)`	None interface. Logical only.

primitives.str_

Module nu.forms.primitives.str_.

Str - string interface.

Name	Sort	Call	Meaning
Str	`scalar_query`	`Str()`	String interface. Addable + sliceable + comparable + logical + string methods.

collections.tuple_

Module nu.forms.collections.tuple_.

Tuple - tuple interface.

Name	Sort	Call	Meaning
Tuple	`scalar_query`	`Tuple()`	Tuple interface. Immutable sequence + comparable.

spans

Span atoms: transparent Interactions that wrap a body to govern a region.

primitives.int_

Int - integer interface.

On this page

nu.lang.forms primitives.any_primitives.bool_primitives.bytes_collections.dict_collections.views primitives.sentinel_primitives.float_collections.set_primitives.int_collections.iterator_collections.list_primitives.none_primitives.str_collections.tuple_