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PyFunction

Extends Function for Python codebases.

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Inherits from

PyHasBlock, PySymbol, Function, HasBlock, Symbol, Callable, Expression, Usable, Editable, Importable, HasName

Attributes


body


Returns the body of the function as a string.

call_sites


Returns all call sites (invocations) of this callable in the codebase.

code_block


The block of code associated with the code object.

comment


Retrieves the comment group associated with a Python symbol.

decorators


Returns a list of decorators associated with this symbol.

docstring


Gets the function's docstring.

extended


Returns a SymbolGroup of all extended nodes associated with this element.

extended_nodes


Returns a list of Editable nodes associated with this symbol, including extended symbols.

extended_source


Returns the source text representation of all extended nodes.

file


The file object that this Editable instance belongs to.

filepath


The file path of the file that this Editable instance belongs to.

full_name


Returns the full name of the object, including the namespace path.

function_calls


Gets all function calls within the function and its parameters.

function_signature


Returns the function signature as a string.

inferred_return_type


Gets the inferred type of the function from the language's native language engine / compiler.

inline_comment


Returns the inline comment group associated with this symbol.

is_async


Returns True if the function is asynchronous.

is_class_method


Indicates whether the current function is decorated with @classmethod.

is_constructor


Determines if the current function is a constructor method.

is_decorated


Returns whether the symbol is decorated with decorators.

is_exported


Indicates whether a Python symbol is exported.

is_magic


Determines if a method is a magic method.

is_method


Returns whether the function is a method of a class.

is_overload


Determines whether a function is decorated with an overload decorator.

is_private


Determines if a method is a private method.

is_property


Determines if the function is a property.

is_static_method


Determines if the function is a static method.

name


Retrieves the base name of the object without namespace prefixes.

nested_functions


Returns a list of nested functions defined within this function's code block.

parameters


Retrieves all parameters of a callable symbol.

parent


The parent node of this Editable instance.

parent_class


Find the class this node is contained in

parent_function


Find the function this node is contained in

parent_statement


Find the statement this node is contained in

resolved_value


Returns the resolved type of an Expression.

return_statements


Returns a list of all return statements within this function's body.

return_type


The type of value returned by the callable, or a placeholder.

source


Returns the source code of the symbol.

symbol_type


The type of symbol, set to SymbolType.Function.

type_parameters


The type parameters of the symbol, if any.

variable_usages


Returns Editables for all TreeSitter node instances of variable usages within this node's

Methods


add_comment

Adds a new comment to the symbol.

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Parameters

commentrequired

The comment text to be added.

auto_formatdefault: True

Whether to automatically format the text into a proper comment format.

clean_formatdefault: True

Whether to clean and normalize the comment text before adding.

comment_typedefault: PyCommentType.SINGLE_LINE

The style of comment to add (e.g., single-line, multi-line).

Returns

add_decorator

Adds a decorator to a function or method.

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Parameters

new_decoratorrequired

The decorator to add, including the '@' symbol.

skip_if_existsdefault: False

If True, skips adding if the decorator exists.

Returns

True if the decorator was added, False if skipped.

add_keyword

Insert a keyword in the appropriate place before this symbol if it doesn't already exist.

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Parameters

keywordrequired

The keyword to be inserted. Must be a valid keyword in the language context.

Returns

add_statements

Adds statements to the end of a function body.

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Parameters

linesrequired

The lines of code to be added at the end of the function body.

Returns

ancestors

Find all ancestors of the node of the given type. Does not return itself

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Returns

asyncify

Modifies the function to be asynchronous.

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Returns

dependencies

Returns a list of symbols that this symbol depends on.

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Parameters

usage_typesdefault: UsageType.DIRECT

The types of dependencies to search for. Defaults to UsageType.DIRECT.

max_depthdefault: None

Maximum depth to traverse in the dependency graph. If provided, will recursively collect

Returns

A list of symbols and imports that this symbol depends on, sorted by file location.

edit

Replace the source of this node with new_src.

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Parameters

new_srcrequired

The new source code to replace the current source with.

fix_indentationdefault: False

If True, adjusts the indentation of new_src to match the current text's indentation. Defaults to False.

prioritydefault: 0

The priority of this edit. Higher priority edits take precedence. Defaults to 0.

dedupedefault: True

If True, prevents duplicate edits. Defaults to True.

Returns

find

Find and return matching nodes or substrings within an Editable instance.

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Parameters

strings_to_matchrequired

One or more strings to search for.

exactdefault: False

If True, only return nodes whose source exactly matches one of the strings_to_match.

Returns

A list of Editable instances that match the search criteria.

find_string_literals

Returns a list of string literals within this node's source that match any of the given

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Parameters

strings_to_matchrequired

A list of strings to search for in string literals.

fuzzy_matchdefault: False

If True, matches substrings within string literals. If False, only matches exact strings. Defaults to False.

Returns

A list of Editable objects representing the matching string literals.

flag

Flags a Python symbol by adding a flag comment and returning a CodeFlag.

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Returns

The code flag object for tracking purposes

get_import_string

Generates an import string for a Python symbol.

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Parameters

aliasdefault: None

Optional alias name for the import. If provided and different from symbol name, creates aliased import.

moduledefault: None

Optional module name to import from. If not provided, uses the symbol's file's module name.

import_typedefault: ImportType.UNKNOWN

Type of import to generate. If WILDCARD, generates star import. Defaults to UNKNOWN.

is_type_importdefault: False

Whether this is a type import. Currently unused. Defaults to False.

Returns

The formatted import string. Will be one of: - "from {module} import * as {file_name}" (for WILDCARD imports) - "from {module} import {name} as {alias}" (for aliased imports) - "from {module} import {name}" (for standard imports)

get_name

Returns the name node of the object.

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Returns

The name node of the object. Can be a Name node for simple names, a ChainedAttribute for names with namespaces (e.g., a.b), or None if the object has no name.

get_parameter

Gets a specific parameter from the callable's parameters list by name.

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Parameters

namerequired

The name of the parameter to retrieve.

Returns

The parameter with the specified name, or None if no parameter with that name exists or if there are no parameters.

get_parameter_by_index

Returns the parameter at the given index.

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Parameters

indexrequired

The index of the parameter to retrieve.

Returns

The parameter at the specified index, or None if the parameter list is empty or the index does not exist.

get_parameter_by_type

Retrieves a parameter from the callable by its type.

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Parameters

typerequired

The type to search for.

Returns

The parameter with the specified type, or None if no parameter is found or if the callable has no parameters.

get_variable_usages

Returns Editables for all TreeSitter nodes corresponding to instances of variable usage

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Parameters

var_namerequired

The variable name to search for.

fuzzy_matchdefault: False

If True, matches variables where var_name is a substring. If False, requires exact match. Defaults to False.

Returns

List of Editable objects representing variable usage nodes matching the given name.

insert_after

Inserts code after this node.

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Parameters

new_srcrequired

The source code to insert after this node.

fix_indentationdefault: False

Whether to adjust the indentation of new_src to match the current node. Defaults to False.

newlinedefault: True

Whether to add a newline before the new_src. Defaults to True.

prioritydefault: 0

Priority of the insertion transaction. Defaults to 0.

dedupedefault: True

Whether to deduplicate identical transactions. Defaults to True.

Returns

insert_before

Inserts text before the current symbol node in the Abstract Syntax Tree.

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Parameters

new_srcrequired

The source code text to insert.

fix_indentationdefault: False

Whether to adjust the indentation of new_src to match current text. Defaults to False.

newlinedefault: True

Whether to add a newline after insertion. Defaults to True.

prioritydefault: 0

Priority of this edit operation. Higher priority edits are applied first. Defaults to 0.

dedupedefault: True

Whether to remove duplicate insertions. Defaults to True.

extendeddefault: True

Whether to insert before extended nodes like comments and decorators. Defaults to True.

Returns

insert_statements

Inserts lines of code into the function body at the specified index.

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Parameters

linesrequired

The code lines to insert into the function body.

indexdefault: 0

The position in the function body where the lines should be inserted. Defaults to 0.

Returns

is_child_of

Checks if this node is a descendant of the given editable instance in the AST.

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Returns

is_wrapped_in

Check if this node is contained another node of the given class

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Returns

move_to_file

Moves the given symbol to a new file and updates its imports and references.

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Parameters

filerequired

The destination file to move the symbol to.

include_dependenciesdefault: True

If True, moves all dependencies of the symbol to the new file. If False, adds imports for the dependencies. Defaults to True.

strategydefault: "update_all_imports"

The strategy to use for updating imports. Can be either 'add_back_edge' or 'update_all_imports'. Defaults to 'update_all_imports'.

Returns

parent_of_type

Find the first ancestor of the node of the given type. Does not return itself

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Returns

parent_of_types

Find the first ancestor of the node of the given type. Does not return itself

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Returns

prepend_statements

Prepends statements to the start of the function body.

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Parameters

linesrequired

The code statements to prepend to the function body.

Returns

This method modifies the function in place.

reduce_condition

Reduces an editable to the following condition

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Returns

remove

Deletes this Node and its related extended nodes (e.g. decorators, comments).

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Parameters

delete_formattingdefault: True

Whether to delete surrounding whitespace and formatting. Defaults to True.

prioritydefault: 0

Priority of the removal transaction. Higher priority transactions are executed first. Defaults to 0.

dedupedefault: True

Whether to deduplicate removal transactions at the same location. Defaults to True.

Returns

rename

Renames a symbol and updates all its references in the codebase.

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Parameters

new_namerequired

The new name for the symbol.

prioritydefault: 0

Priority of the edit operation. Defaults to 0.

Returns

A tuple containing the file node ID and the new node ID of the renamed symbol.

rename_local_variable

Renames a local variable and all its usages within a function body.

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Parameters

old_var_namerequired

The current name of the local variable to be renamed.

new_var_namerequired

The new name to give to the local variable.

fuzzy_matchdefault: False

If True, matches variable names that contain old_var_name. Defaults to False.

Returns

The method modifies the AST in place.

replace

Search and replace occurrences of text within this node's source and its extended nodes.

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Parameters

oldrequired

The text or pattern to search for.

newrequired

The text to replace matches with.

countdefault: -1

Maximum number of replacements to make. Defaults to -1 (replace all).

is_regexdefault: False

Whether to treat 'old' as a regex pattern. Defaults to False.

prioritydefault: 0

Priority of the replacement operation. Defaults to 0.

Returns

The total number of replacements made.

Returns a list of all regex match of regex_pattern, similar to python's re.search().

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Parameters

regex_patternrequired

The regular expression pattern to search for.

include_stringsdefault: True

When False, excludes the contents of string literals from the search. Defaults to True.

include_commentsdefault: True

When False, excludes the contents of comments from the search. Defaults to True.

Returns

A list of Editable objects corresponding to the matches found.

set_comment

Sets a comment for the Python symbol.

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Parameters

commentrequired

The comment text to be added or set.

auto_formatdefault: True

If True, automatically formats the text as a comment.

clean_formatdefault: True

If True, cleans the format of the comment before

comment_typedefault: PyCommentType.SINGLE_LINE

Type of comment to add (e.g., single line,

Returns

This method modifies the symbol's comment in place.

set_docstring

Sets or updates a docstring for a Python function or class.

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Parameters

docstringrequired

The docstring content to set.

auto_formatdefault: True

Whether to format the text into a proper docstring format. Defaults to True.

clean_formatdefault: True

Whether to clean and normalize the docstring format before insertion. Defaults to True.

force_multilinedefault: False

Whether to force single-line comments to be converted to multi-line format. Defaults to False.

Returns

set_inline_comment

Sets an inline comment to the symbol.

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Parameters

commentrequired

The inline comment text to add.

auto_formatdefault: True

If True, formats the text into a proper inline

clean_formatdefault: True

If True, cleans the comment text before insertion

Returns

set_name

Sets the name of a code element.

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Parameters

namerequired

The new name to set for the object.

Returns

set_return_type

Sets or modifies the return type annotation of a function.

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Parameters

new_return_typerequired

The new return type annotation to set. Provide an empty string to remove the return type annotation.

Returns

symbol_usages

Returns a list of symbols that use or import the exportable object.

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Parameters

usage_typesdefault: None

The types of usages to search for. Defaults to any.

Returns

A list of symbols that use or import the exportable object.

usages

Returns a list of usages of the exportable object.

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Parameters

usage_typesdefault: None

Specifies which types of usages to include in the results. Default is any usages.

Returns

A sorted list of Usage objects representing where this exportable is used, ordered by source location in reverse.