30 lines
1.4 KiB
Plaintext
30 lines
1.4 KiB
Plaintext
---
|
||
title: wrap_method
|
||
description: API reference for qiskit.utils.wrap_method
|
||
in_page_toc_min_heading_level: 1
|
||
python_api_type: function
|
||
python_api_name: qiskit.utils.wrap_method
|
||
---
|
||
|
||
# qiskit.utils.wrap\_method
|
||
|
||
<Function id="qiskit.utils.wrap_method" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.22/qiskit/utils/classtools.py" signature="wrap_method(cls, name, *, before=None, after=None)">
|
||
Wrap the functionality the instance- or class method `cls.name` with additional behaviour `before` and `after`.
|
||
|
||
This mutates `cls`, replacing the attribute `name` with the new functionality. This is useful when creating class decorators. The method is allowed to be defined on any parent class instead.
|
||
|
||
If either `before` or `after` are given, they should be callables with a compatible signature to the method referred to. They will be called immediately before or after the method as appropriate, and any return value will be ignored.
|
||
|
||
**Parameters**
|
||
|
||
* **cls** (`Type`) – the class to modify.
|
||
* **name** (`str`) – the name of the method on the class to wrap.
|
||
* **before** (`Optional`\[`Callable`]) – a callable that should be called before the method that is being wrapped.
|
||
* **after** (`Optional`\[`Callable`]) – a callable that should be called after the method that is being wrapped.
|
||
|
||
**Raises**
|
||
|
||
**ValueError** – if the named method is not defined on the class or any parent class.
|
||
</Function>
|
||
|