Alias¤
Alias ¤
Alias(
name: str,
target: str | Object | Alias,
*,
lineno: int | None = None,
endlineno: int | None = None,
runtime: bool = True,
parent: Module | Class | Alias | None = None,
inherited: bool = False
)
flowchart TD
griffe.Alias[Alias]
_griffe.mixins.ObjectAliasMixin[ObjectAliasMixin]
_griffe.mixins.GetMembersMixin[GetMembersMixin]
_griffe.mixins.SetMembersMixin[SetMembersMixin]
_griffe.mixins.DelMembersMixin[DelMembersMixin]
_griffe.mixins.SerializationMixin[SerializationMixin]
_griffe.mixins.ObjectAliasMixin --> griffe.Alias
_griffe.mixins.GetMembersMixin --> _griffe.mixins.ObjectAliasMixin
_griffe.mixins.SetMembersMixin --> _griffe.mixins.ObjectAliasMixin
_griffe.mixins.DelMembersMixin --> _griffe.mixins.ObjectAliasMixin
_griffe.mixins.SerializationMixin --> _griffe.mixins.ObjectAliasMixin
click griffe.Alias href "" "griffe.Alias"
click _griffe.mixins.ObjectAliasMixin href "" "_griffe.mixins.ObjectAliasMixin"
click _griffe.mixins.GetMembersMixin href "" "_griffe.mixins.GetMembersMixin"
click _griffe.mixins.SetMembersMixin href "" "_griffe.mixins.SetMembersMixin"
click _griffe.mixins.DelMembersMixin href "" "_griffe.mixins.DelMembersMixin"
click _griffe.mixins.SerializationMixin href "" "_griffe.mixins.SerializationMixin"
This class represents an alias, or indirection, to an object declared in another module.
Aliases represent objects that are in the scope of a module or class, but were imported from another module.
They behave almost exactly like regular objects, to a few exceptions:
- line numbers are those of the alias, not the target
- the path is the alias path, not the canonical one
- the name can be different from the target's
- if the target can be resolved, the kind is the target's kind
- if the target cannot be resolved, the kind becomes Kind.ALIAS
Parameters:
-
name
¤str
) –The alias name.
-
target
¤str | Object | Alias
) –If it's a string, the target resolution is delayed until accessing the target property. If it's an object, or even another alias, the target is immediately set.
-
lineno
¤int | None
, default:None
) –The alias starting line number.
-
endlineno
¤int | None
, default:None
) –The alias ending line number.
-
runtime
¤bool
, default:True
) –Whether this alias is present at runtime or not.
-
parent
¤Module | Class | Alias | None
, default:None
) –The alias parent.
-
inherited
¤bool
, default:False
) –Whether this alias wraps an inherited member.
Methods:
-
__bool__
–An alias is always true-ish.
-
__delitem__
–Delete a member with its name or path.
-
__getitem__
–Get a member with its name or path.
-
__len__
–The length of an alias is always 1.
-
__setitem__
–Set a member with its name or path.
-
as_dict
–Return this alias' data as a dictionary.
-
as_json
–Return this target's data as a JSON string.
-
del_member
–Delete a member with its name or path.
-
filter_members
–Filter and return members based on predicates.
-
from_json
–Create an instance of this class from a JSON string.
-
get_member
–Get a member with its name or path.
-
has_labels
–Tell if this object has all the given labels.
-
is_kind
–Tell if this object is of the given kind.
-
mro
–Return a list of classes in order corresponding to Python's MRO.
-
resolve
–Resolve a name within this object's and parents' scope.
-
resolve_target
–Resolve the target.
-
set_member
–Set a member with its name or path.
Attributes:
-
alias_endlineno
(int | None
) –The ending line number of the alias.
-
alias_lineno
(int | None
) –The starting line number of the alias.
-
aliases
(dict[str, Alias]
) –The aliases pointing to this object.
-
all_members
(dict[str, Object | Alias]
) –All members (declared and inherited).
-
annotation
(str | Expr | None
) –The attribute type annotation.
-
attributes
(dict[str, Attribute]
) –The attribute members.
-
bases
(list[Expr | str]
) –The class bases.
-
canonical_path
(str
) –The full dotted path of this object.
-
classes
(dict[str, Class]
) –The class members.
-
decorators
(list[Decorator]
) –The class/function decorators.
-
deleter
(Function | None
) –The deleter linked to this function (property).
-
deprecated
(str | bool | None
) –Whether this alias is deprecated (boolean or deprecation message).
-
docstring
(Docstring | None
) –The target docstring.
-
endlineno
(int | None
) –The ending line number of the target object.
-
exports
(set[str] | list[str | ExprName] | None
) –The names of the objects exported by this (module) object through the
__all__
variable. -
extra
(dict
) –Namespaced dictionaries storing extra metadata for this object, used by extensions.
-
filepath
(Path | list[Path]
) –The file path (or directory list for namespace packages) where this object was defined.
-
final_target
(Object
) –The final, resolved target, if possible.
-
functions
(dict[str, Function]
) –The function members.
-
has_docstring
(bool
) –Whether this alias' target has a non-empty docstring.
-
has_docstrings
(bool
) –Whether this alias' target or any of its members has a non-empty docstring.
-
imports
(dict[str, str]
) –The other objects imported by this alias' target.
-
imports_future_annotations
(bool
) –Whether this module import future annotations.
-
inherited
(bool
) –Whether this alias represents an inherited member.
-
inherited_members
(dict[str, Alias]
) –Members that are inherited from base classes.
-
is_alias
(bool
) –Always true for aliases.
-
is_attribute
(bool
) –Whether this object is an attribute.
-
is_class
(bool
) –Whether this object is a class.
-
is_class_private
(bool
) –Whether this object/alias is class-private (starts with
__
and is a class member). -
is_collection
(bool
) –Always false for aliases.
-
is_deprecated
(bool
) –Whether this object is deprecated.
-
is_exported
(bool
) –Whether this object/alias is exported (listed in
__all__
). -
is_function
(bool
) –Whether this object is a function.
-
is_imported
(bool
) –Whether this object/alias was imported from another module.
-
is_init_module
(bool
) –Whether this module is an
__init__.py
module. -
is_module
(bool
) –Whether this object is a module.
-
is_namespace_package
(bool
) –Whether this module is a namespace package (top folder, no
__init__.py
). -
is_namespace_subpackage
(bool
) –Whether this module is a namespace subpackage.
-
is_package
(bool
) –Whether this module is a package (top module).
-
is_private
(bool
) –Whether this object/alias is private (starts with
_
) but not special. -
is_public
(bool
) –Whether this object is considered public.
-
is_special
(bool
) –Whether this object/alias is special ("dunder" attribute/method, starts and end with
__
). -
is_subpackage
(bool
) –Whether this module is a subpackage.
-
is_wildcard_exposed
(bool
) –Whether this object/alias is exposed to wildcard imports.
-
kind
(Kind
) –The target's kind, or
Kind.ALIAS
if the target cannot be resolved. -
labels
(set[str]
) –The target labels (
property
,dataclass
, etc.). -
lineno
(int | None
) –The starting line number of the target object.
-
lines
(list[str]
) –The lines containing the source of this object.
-
lines_collection
(LinesCollection
) –The lines collection attached to this object or its parents.
-
members
(dict[str, Object | Alias]
) –The target's members (modules, classes, functions, attributes).
-
module
(Module
) –The parent module of this object.
-
modules
(dict[str, Module]
) –The module members.
-
modules_collection
(ModulesCollection
) –The modules collection attached to the alias parents.
-
name
(str
) –The alias name.
-
overloads
(dict[str, list[Function]] | list[Function] | None
) –The overloaded signatures declared in this class/module or for this function.
-
package
(Module
) –The absolute top module (the package) of this object.
-
parameters
(Parameters
) –The parameters of the current function or
__init__
method for classes. -
parent
(Module | Class | Alias | None
) –The parent of this alias.
-
path
(str
) –The dotted path / import path of this object.
-
public
(bool | None
) –Whether this alias is public.
-
relative_filepath
(Path
) –The file path where this object was defined, relative to the current working directory.
-
relative_package_filepath
(Path
) –The file path where this object was defined, relative to the top module path.
-
resolved
(bool
) –Whether this alias' target is resolved.
-
resolved_bases
(list[Object]
) –Resolved class bases.
-
returns
(str | Expr | None
) –The function return type annotation.
-
runtime
(bool
) –Whether this alias is available at runtime.
-
setter
(Function | None
) –The setter linked to this function (property).
-
source
(str
) –The source code of this object.
-
target
(Object | Alias
) –The resolved target (actual object), if possible.
-
target_path
(str
) –The path of this alias' target.
-
value
(str | Expr | None
) –The attribute value.
-
wildcard
(str | None
) –The module on which the wildcard import is performed (if any).
alias_endlineno instance-attribute
¤
The ending line number of the alias.
alias_lineno instance-attribute
¤
The starting line number of the alias.
all_members property
¤
All members (declared and inherited).
This method is part of the consumer API: do not use when producing Griffe trees!
attributes property
¤
The attribute members.
This method is part of the consumer API: do not use when producing Griffe trees!
canonical_path property
¤
canonical_path: str
The full dotted path of this object.
The canonical path is the path where the object was defined (not imported).
classes property
¤
The class members.
This method is part of the consumer API: do not use when producing Griffe trees!
deprecated instance-attribute
¤
Whether this alias is deprecated (boolean or deprecation message).
exports property
¤
The names of the objects exported by this (module) object through the __all__
variable.
Exports can contain string (object names) or resolvable names, like other lists of exports coming from submodules:
from .submodule import __all__ as submodule_all
__all__ = ["hello", *submodule_all]
Exports get expanded by the loader before it expands wildcards and resolves aliases.
extra property
¤
extra: dict
Namespaced dictionaries storing extra metadata for this object, used by extensions.
filepath property
¤
The file path (or directory list for namespace packages) where this object was defined.
final_target property
¤
final_target: Object
The final, resolved target, if possible.
This will iterate through the targets until a non-alias object is found.
functions property
¤
The function members.
This method is part of the consumer API: do not use when producing Griffe trees!
has_docstrings property
¤
has_docstrings: bool
Whether this alias' target or any of its members has a non-empty docstring.
imports property
¤
The other objects imported by this alias' target.
Keys are the names within the object (from ... import ... as AS_NAME
), while the values are the actual names of the objects (from ... import REAL_NAME as ...
).
imports_future_annotations property
¤
imports_future_annotations: bool
Whether this module import future annotations.
inherited instance-attribute
¤
Whether this alias represents an inherited member.
inherited_members cached
property
¤
Members that are inherited from base classes.
Each inherited member of the target will be wrapped in an alias, to preserve correct object access paths.
This method is part of the consumer API: do not use when producing Griffe trees!
is_class_private property
¤
is_class_private: bool
Whether this object/alias is class-private (starts with __
and is a class member).
is_collection class-attribute
instance-attribute
¤
is_collection: bool = False
Always false for aliases.
is_imported property
¤
is_imported: bool
Whether this object/alias was imported from another module.
is_namespace_package property
¤
is_namespace_package: bool
Whether this module is a namespace package (top folder, no __init__.py
).
is_namespace_subpackage property
¤
is_namespace_subpackage: bool
Whether this module is a namespace subpackage.
is_private property
¤
is_private: bool
Whether this object/alias is private (starts with _
) but not special.
is_public property
¤
is_public: bool
Whether this object is considered public.
In modules, developers can mark objects as public thanks to the __all__
variable. In classes however, there is no convention or standard to do so.
Therefore, to decide whether an object is public, we follow this algorithm:
- If the object's
public
attribute is set (boolean), return its value. - If the object is listed in its parent's (a module)
__all__
attribute, it is public. - If the parent (module) defines
__all__
and the object is not listed in, it is private. - If the object has a private name, it is private.
- If the object was imported from another module, it is private.
- Otherwise, the object is public.
is_special property
¤
is_special: bool
Whether this object/alias is special ("dunder" attribute/method, starts and end with __
).
is_wildcard_exposed property
¤
is_wildcard_exposed: bool
Whether this object/alias is exposed to wildcard imports.
To be exposed to wildcard imports, an object/alias must:
- be available at runtime
- have a module as parent
- be listed in
__all__
if__all__
is defined - or not be private (having a name starting with an underscore)
Special case for Griffe trees: a submodule is only exposed if its parent imports it.
Returns:
-
bool
–True or False.
lines_collection property
¤
lines_collection: LinesCollection
The lines collection attached to this object or its parents.
Raises:
-
ValueError
–When no modules collection can be found in the object or its parents.
members cached
property
¤
The target's members (modules, classes, functions, attributes).
module property
¤
module: Module
The parent module of this object.
Raises:
-
ValueError
–When the object is not a module and does not have a parent.
modules property
¤
The module members.
This method is part of the consumer API: do not use when producing Griffe trees!
modules_collection property
¤
modules_collection: ModulesCollection
The modules collection attached to the alias parents.
overloads property
writable
¤
The overloaded signatures declared in this class/module or for this function.
parameters property
¤
parameters: Parameters
The parameters of the current function or __init__
method for classes.
This property can fetch inherited members, and therefore is part of the consumer API: do not use when producing Griffe trees!
relative_filepath property
¤
relative_filepath: Path
The file path where this object was defined, relative to the current working directory.
If this object's file path is not relative to the current working directory, return its absolute path.
Raises:
-
ValueError
–When the relative path could not be computed.
relative_package_filepath property
¤
relative_package_filepath: Path
The file path where this object was defined, relative to the top module path.
Raises:
-
ValueError
–When the relative path could not be computed.
resolved_bases property
¤
Resolved class bases.
This method is part of the consumer API: do not use when producing Griffe trees!
target property
writable
¤
The resolved target (actual object), if possible.
Upon accessing this property, if the target is not already resolved, a lookup is done using the modules collection to find the target.
wildcard property
¤
wildcard: str | None
The module on which the wildcard import is performed (if any).
__delitem__ ¤
Delete a member with its name or path.
This method is part of the consumer API: do not use when producing Griffe trees!
Members will be looked up in both declared members and inherited ones, triggering computation of the latter.
Parameters:
Examples:
>>> del griffe_object["foo"]
>>> del griffe_object["path.to.bar"]
>>> del griffe_object[("path", "to", "qux")]
__getitem__ ¤
Get a member with its name or path.
This method is part of the consumer API: do not use when producing Griffe trees!
Members will be looked up in both declared members and inherited ones, triggering computation of the latter.
Parameters:
Examples:
>>> foo = griffe_object["foo"]
>>> bar = griffe_object["path.to.bar"]
>>> qux = griffe_object[("path", "to", "qux")]
__setitem__ ¤
Set a member with its name or path.
This method is part of the consumer API: do not use when producing Griffe trees!
Parameters:
-
key
¤str | Sequence[str]
) –The name or path of the member.
-
value
¤Object | Alias
) –The member.
Examples:
>>> griffe_object["foo"] = foo
>>> griffe_object["path.to.bar"] = bar
>>> griffe_object[("path", "to", "qux")] = qux
as_dict ¤
as_json ¤
del_member ¤
Delete a member with its name or path.
This method is part of the producer API: you can use it safely while building Griffe trees (for example in Griffe extensions).
Members will be looked up in declared members only, not inherited ones.
Parameters:
Examples:
>>> griffe_object.del_member("foo")
>>> griffe_object.del_member("path.to.bar")
>>> griffe_object.del_member(("path", "to", "qux"))
filter_members ¤
from_json classmethod
¤
from_json(json_string: str, **kwargs: Any) -> _ObjType
Create an instance of this class from a JSON string.
Parameters:
-
json_string
¤str
) –JSON to decode into Object.
-
**kwargs
¤Any
, default:{}
) –Additional options passed to decoder.
Returns:
-
_ObjType
–An Object instance.
Raises:
-
TypeError
–When the json_string does not represent and object of the class from which this classmethod has been called.
get_member ¤
Get a member with its name or path.
This method is part of the producer API: you can use it safely while building Griffe trees (for example in Griffe extensions).
Members will be looked up in declared members only, not inherited ones.
Parameters:
Examples:
>>> foo = griffe_object["foo"]
>>> bar = griffe_object["path.to.bar"]
>>> bar = griffe_object[("path", "to", "bar")]
has_labels ¤
is_kind ¤
resolve ¤
Resolve a name within this object's and parents' scope.
Parameters:
Raises:
-
NameResolutionError
–When the name could not be resolved.
Returns:
-
str
–The resolved name.
resolve_target ¤
resolve_target() -> None
Resolve the target.
Raises:
-
AliasResolutionError
–When the target cannot be resolved. It happens when the target does not exist, or could not be loaded (unhandled dynamic object?), or when the target is from a module that was not loaded and added to the collection.
-
CyclicAliasError
–When the resolved target is the alias itself.
set_member ¤
Set a member with its name or path.
This method is part of the producer API: you can use it safely while building Griffe trees (for example in Griffe extensions).
Parameters:
-
key
¤str | Sequence[str]
) –The name or path of the member.
-
value
¤Object | Alias
) –The member.
Examples:
>>> griffe_object.set_member("foo", foo)
>>> griffe_object.set_member("path.to.bar", bar)
>>> griffe_object.set_member(("path", "to", "qux"), qux)