API

Package accretive

Module accretive

Accretive data structures.

class accretive.ABCFactory(name: str, bases: tuple[type, ...], namespace: dict[str, ~typing_extensions.Any], *, decorators: ~collections.abc.Iterable[~collections.abc.Callable[[type], type]] = (), docstring: str | None | ~accretive.__.Absent = <accretive.__.Absent object>, **args: ~typing_extensions.Any)

Bases: ABCMeta

Accretive abstract base class factory.

Derived from type, this is a metaclass. A metaclass is a class factory class. I.e., it is a class that produces other classes as its instances.

Prevents reassignment or deletion of class attributes after they have been assigned. Only assignment of new class attributes is permitted.

mro()

Return a type’s method resolution order.

register(subclass)

Register a virtual subclass of an ABC.

Returns the subclass, to allow usage as a class decorator.

class accretive.Class(name: str, bases: tuple[type, ...], namespace: dict[str, ~typing_extensions.Any], *, decorators: ~collections.abc.Iterable[~collections.abc.Callable[[type], type]] = (), docstring: str | None | ~accretive.__.Absent = <accretive.__.Absent object>, **args: ~typing_extensions.Any)

Bases: type

Accretive class factory.

Derived from type, this is a metaclass. A metaclass is a class factory class. I.e., it is a class that produces other classes as its instances.

Prevents reassignment or deletion of class attributes after they have been assigned. Only assignment of new class attributes is permitted.

mro()

Return a type’s method resolution order.

accretive.ClassDecorators

alias of Iterable[Callable[[type], type]]

class accretive.Dictionary(*iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')])

Bases: Object, Generic[H, V]

Accretive dictionary.

Prevents alteration or removal of dictionary entries after they have been added. Only addition of new dictionary entries is permitted.

Prevents reassignment or deletion of instance attributes after they have been assigned. Only assignment of new instance attributes is permitted.

copy() → Self

Provides fresh copy of dictionary.

get(key: ~collections.abc.Hashable, default: ~typing_extensions.Any | ~accretive.__.Absent = <accretive.__.Absent object>) → Annotated[Any, Doc('Value of entry, if it exists. Else, supplied default value or ``None``.')]

Retrieves entry associated with key, if it exists.

items() → ItemsView[Hashable, Any]

Provides iterable view over dictionary items.

keys() → KeysView[Hashable]

Provides iterable view over dictionary keys.

update(*iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')]) → Self

Adds new entries as a batch.

values() → ValuesView[Any]

Provides iterable view over dictionary values.

class accretive.Module(name, doc=None)

Bases: ModuleType

Accretive modules.

Derived from types.ModuleType, this class is suitable for use as a Python module class.

Prevents reassignment or deletion of module attributes after they have been assigned. Only assignment of new module attributes is permitted.

class accretive.Namespace(*iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **attributes: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')])

Bases: Object

Accretive namespaces.

A namespace is an object, whose attributes can be determined from iterables and keyword arguments, at initialization time. The string representation of the namespace object reflects its current instance attributes. Modeled after types.SimpleNamespace.

Prevents reassignment or deletion of instance attributes after they have been assigned. Only assignment of new instance attributes is permitted.

class accretive.Object(*posargs: Any, **nomargs: Any)

Bases: object

Accretive objects.

Prevents reassignment or deletion of instance attributes after they have been assigned. Only assignment of new instance attributes is permitted.

class accretive.ProducerDictionary(producer: Annotated[Callable[[], Any], Doc('Callable which produces values for absent dictionary entries.')], /, *iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')])

Bases: Dictionary, Generic[H, V]

Accretive dictionary with default value for missing entries.

Prevents alteration or removal of dictionary entries after they have been added. Only addition of new dictionary entries is permitted.

When an attempt to access a missing entry is made, then the entry is added with a default value. Modeled after collections.defaultdict.

Prevents reassignment or deletion of instance attributes after they have been assigned. Only assignment of new instance attributes is permitted.

copy() → Self

Provides fresh copy of dictionary.

get(key: ~collections.abc.Hashable, default: ~typing_extensions.Any | ~accretive.__.Absent = <accretive.__.Absent object>) → Annotated[Any, Doc('Value of entry, if it exists. Else, supplied default value or ``None``.')]

Retrieves entry associated with key, if it exists.

items() → ItemsView[Hashable, Any]

Provides iterable view over dictionary items.

keys() → KeysView[Hashable]

Provides iterable view over dictionary keys.

update(*iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')]) → Self

Adds new entries as a batch.

values() → ValuesView[Any]

Provides iterable view over dictionary values.

class accretive.ProducerValidatorDictionary(producer: Annotated[Callable[[], Any], Doc('Callable which produces values for absent dictionary entries.')], validator: Annotated[Callable[[Hashable, Any], bool], Doc('Callable which validates entries before addition to dictionary.')], /, *iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')])

Bases: Dictionary, Generic[H, V]

Accretive dictionary with defaults and validation.

Prevents alteration or removal of dictionary entries after they have been added. Only addition of new dictionary entries is permitted.

When an attempt to access a missing entry is made, then the entry is added with a default value. Modeled after collections.defaultdict.

When an attempt to add a new entry is made, then the entry is validated against supplied criteria. If validation fails, then the entry is rejected.

Prevents reassignment or deletion of instance attributes after they have been assigned. Only assignment of new instance attributes is permitted.

copy() → Self

Provides fresh copy of dictionary.

get(key: ~collections.abc.Hashable, default: ~typing_extensions.Any | ~accretive.__.Absent = <accretive.__.Absent object>) → Annotated[Any, Doc('Value of entry, if it exists. Else, supplied default value or ``None``.')]

Retrieves entry associated with key, if it exists.

items() → ItemsView[Hashable, Any]

Provides iterable view over dictionary items.

keys() → KeysView[Hashable]

Provides iterable view over dictionary keys.

update(*iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')]) → Self

Adds new entries as a batch.

values() → ValuesView[Any]

Provides iterable view over dictionary values.

class accretive.ProtocolClass(name: str, bases: tuple[type, ...], namespace: dict[str, ~typing_extensions.Any], *, decorators: ~collections.abc.Iterable[~collections.abc.Callable[[type], type]] = (), docstring: str | None | ~accretive.__.Absent = <accretive.__.Absent object>, **args: ~typing_extensions.Any)

Bases: _ProtocolMeta

Accretive protocol class factory.

Derived from type, this is a metaclass. A metaclass is a class factory class. I.e., it is a class that produces other classes as its instances.

Prevents reassignment or deletion of class attributes after they have been assigned. Only assignment of new class attributes is permitted.

mro()

Return a type’s method resolution order.

register(subclass)

Register a virtual subclass of an ABC.

Returns the subclass, to allow usage as a class decorator.

class accretive.ValidatorDictionary(validator: Annotated[Callable[[Hashable, Any], bool], Doc('Callable which validates entries before addition to dictionary.')], /, *iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')])

Bases: Dictionary, Generic[H, V]

Accretive dictionary with validation of new entries.

Prevents alteration or removal of dictionary entries after they have been added. Only addition of new dictionary entries is permitted.

When an attempt to add a new entry is made, then the entry is validated against supplied criteria. If validation fails, then the entry is rejected.

Prevents reassignment or deletion of instance attributes after they have been assigned. Only assignment of new instance attributes is permitted.

copy() → Self

Provides fresh copy of dictionary.

get(key: ~collections.abc.Hashable, default: ~typing_extensions.Any | ~accretive.__.Absent = <accretive.__.Absent object>) → Annotated[Any, Doc('Value of entry, if it exists. Else, supplied default value or ``None``.')]

Retrieves entry associated with key, if it exists.

items() → ItemsView[Hashable, Any]

Provides iterable view over dictionary items.

keys() → KeysView[Hashable]

Provides iterable view over dictionary keys.

update(*iterables: Annotated[Mapping[Hashable, Any] | Iterable[tuple[Hashable, Any]], Doc('Zero or more iterables from which to initialize dictionary data. Each iterable must be dictionary or sequence of key-value pairs. Duplicate keys will result in an error.')], **entries: Annotated[Any, Doc('Zero or more keyword arguments from which to initialize dictionary data.')]) → Self

Adds new entries as a batch.

values() → ValuesView[Any]

Provides iterable view over dictionary values.

accretive.reclassify_modules(attributes: ~collections.abc.Mapping[str, ~typing_extensions.Any], to_class: type[~accretive.modules.Module] = <class 'accretive.modules.Module'>) → None

Reclassifies modules in dictionary with custom module type.

Module accretive.exceptions

Family of exceptions for package API.

exception accretive.exceptions.EntryValidationError(key: Hashable, value: Any)

Bases: Omnierror, ValueError

Attempt to add invalid entry to dictionary.

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

args

exception accretive.exceptions.IndelibleAttributeError(name: str)

Bases: Omnierror, AttributeError, TypeError

Attempt to reassign or delete indelible attribute.

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

args

name

attribute name

obj

object

exception accretive.exceptions.IndelibleEntryError(indicator: Any)

Bases: Omnierror, TypeError

Attempt to update or remove indelible dictionary entry.

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

args

exception accretive.exceptions.InvalidOperationError(name: str)

Bases: Omnierror, RuntimeError, TypeError

Attempt to perform invalid operation.

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

args

exception accretive.exceptions.Omnierror

Bases: Omniexception, Exception

Base for error exceptions raised by package API.

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

args

exception accretive.exceptions.Omniexception

Bases: InternalObject, BaseException

Base for all exceptions raised by package API.

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

args

Module accretive.qaliases

Qualified aliases to accretive data structures.

Useful for avoiding namespace collisions from attribute imports.

accretive.qaliases.AccretiveABCFactory

alias of ABCFactory

accretive.qaliases.AccretiveClass

alias of Class

accretive.qaliases.AccretiveDictionary

alias of Dictionary

accretive.qaliases.AccretiveModule

alias of Module

accretive.qaliases.AccretiveNamespace

alias of Namespace

accretive.qaliases.AccretiveObject

alias of Object

accretive.qaliases.AccretiveProducerDictionary

alias of ProducerDictionary

accretive.qaliases.reclassify_modules_as_accretive(attributes: ~collections.abc.Mapping[str, ~typing_extensions.Any], to_class: type[~accretive.modules.Module] = <class 'accretive.modules.Module'>) → None

Reclassifies modules in dictionary with custom module type.