astroid.nodes.scoped

class documentation

class Lambda(mixins.FilterStmtsMixin, LocalsDictNodeNG): (source)

Known subclasses: astroid.nodes.scoped_nodes.FunctionDef

Constructor: Lambda(lineno, col_offset, parent, end_lineno, end_col_offset)

Class representing an ast.Lambda node.

>>> import astroid
>>> node = astroid.extract_node('lambda arg: arg + 1')
>>> node
<Lambda.<lambda> l.1 at 0x7f23b2e41518>

Method	`__init__`	No summary
Method	`argnames`	Get the names of each of the arguments.
Method	`bool_value`	Determine the boolean value of this node.
Method	`callable`	Whether this node defines something that is callable.
Method	`display_type`	A human readable type of this node.
Method	`frame`	The node's frame node.
Method	`get_children`	Undocumented
Method	`implicit_parameters`	Undocumented
Method	`infer_call_result`	Infer what the function returns when called.
Method	`postinit`	Do some setup after initialisation.
Method	`pytype`	Get the name of the type that this node represents.
Method	`scope_lookup`	Lookup where the given names is assigned.
Class Variable	`is_lambda`	Undocumented
Class Variable	`name`	Undocumented
Instance Variable	`args`	The arguments that the function takes.
Instance Variable	`body`	The contents of the function body.
Instance Variable	`locals`	A map of the name of a local variable to the node defining it.
Property	`type`	Whether this is a method or function.
Class Variable	`_astroid_fields`	Undocumented
Class Variable	`_other_other_fields`	Undocumented

Inherited from FilterStmtsMixin:

Method	`assign_type`	Undocumented
Method	`_get_filtered_stmts`	method used in _filter_stmts to get statements and trigger break

Inherited from LocalsDictNodeNG (via FilterStmtsMixin):

Method	`__contains__`	Check if a local is defined in this scope.
Method	`__getitem__`	The first node the defines the given local.
Method	`__iter__`	Iterate over the names of locals defined in this scoped node.
Method	`add_local_node`	Append a child that should alter the locals of this scope node.
Method	`items`	Get the names of the locals and the node that defines the local.
Method	`keys`	The names of locals defined in this scoped node.
Method	`qname`	Get the 'qualified' name of the node.
Method	`scope`	The first parent node defining a new scope.
Method	`set_local`	Define that the given name is declared in the given statement node.
Method	`values`	The nodes that define the locals in this scoped node.
Method	`_append_node`	append a child, linking it in the tree
Method	`_scope_lookup`	XXX method for interfacing the scope lookup

Inherited from LookupMixIn (via FilterStmtsMixin, LocalsDictNodeNG):

Method	`ilookup`	Lookup the inferred values of the given variable.
Method	`lookup`	Lookup where the given variable is assigned.

def __init__(self, lineno=None, col_offset=None, parent=None, *, end_lineno=None, end_col_offset=None): (source) ¶

overridden in astroid.nodes.scoped_nodes.FunctionDef

Parameters
lineno:int or None	The line that this node appears on in the source code.
col_offset:int or None	The column that this node appears on in the source code.
parent:NodeNG or None	The parent node in the syntax tree.
end_lineno:Optional[int]	The last line this node appears on in the source code.
end_col_offset:Optional[int]	The end column this node appears on in the source code. Note: This is after the last symbol.

def argnames(self): (source) ¶

Get the names of each of the arguments.

Returns
list(str)	The names of the arguments.

def bool_value(self, context=None): (source) ¶

overridden in astroid.nodes.scoped_nodes.FunctionDef

Determine the boolean value of this node.

Returns
bool	The boolean value of this node. For a `Lambda` this is always `True`.

def callable(self): (source) ¶

Whether this node defines something that is callable.

Returns
bool	True if this defines something that is callable, False otherwise. For a `Lambda` this is always `True`.

def display_type(self): (source) ¶

A human readable type of this node.

Returns
str	The type of this node.

def frame(self: T, *, future: Literal[None, True] = None) -> T: (source) ¶

overridden in astroid.nodes.scoped_nodes.FunctionDef

The node's frame node.

A frame node is a Module, FunctionDef, ClassDef or Lambda.

Returns
`T`	The node itself.

def get_children(self): (source) ¶

overridden in astroid.nodes.scoped_nodes.FunctionDef

Undocumented

def implicit_parameters(self): (source) ¶

Undocumented

def infer_call_result(self, caller, context=None): (source) ¶

overridden in astroid.nodes.scoped_nodes.FunctionDef

Infer what the function returns when called.

Parameters
caller:object	Unused
context	Undocumented

def postinit(self, args: Arguments, body): (source) ¶

overridden in astroid.nodes.scoped_nodes.FunctionDef

Do some setup after initialisation.

Parameters
args:`Arguments`	The arguments that the function takes.
body:list(NodeNG)	The contents of the function body.

def pytype(self): (source) ¶

overridden in astroid.objects.Property

Get the name of the type that this node represents.

Returns
str	The name of the type.

def scope_lookup(self, node, name, offset=0): (source) ¶

overridden in astroid.nodes.scoped_nodes.FunctionDef

Lookup where the given names is assigned.

Parameters
node:NodeNG	The node to look for assignments up to. Any assignments after the given node are ignored.
name:str	The name to find assignments for.
offset:int	The line offset to filter statements up to.
Returns
tuple(str, list(NodeNG))	This scope node and the list of assignments associated to the given name according to the scope where it has been found (locals, globals or builtin).