The delattr () function in Python
The delattr () function in Python is used to delete an attribute from the specified object. How is the syntax of delattr () function, what parameters does it have and how to use it? Invites you to read the track.
The syntax of delattr () function in Python
delattr(object, name)
Parameters of delattr function ()
Delattr () has two parameters:
- object: object name containing the deleted property.
- name: The name of the attribute you want to delete from the object.
Value returned from delattr ()
Delattr () does not return any value. It only removes an attribute (if the object allows).
Example 1: How does the delattr () function work?
class Toado:
x = 10
y = -5
z = 0
point1 = Toado()
print('x = ',point1.x)
print('y = ',point1.y)
print('z = ',point1.z)
delattr(Toado, 'z')
print('--Sau khi xoa thuoc tinh z--')
print('x = ',point1.x)
print('y = ',point1.y)
Run the program, the result is:
x = 10
y = -5
z = 0
--Sau khi xoa thuoc tinh z--
x = 10
y = -5
In this example, the attribute z is removed from the Toado class using the delattr function (Toado, 'z').
Example 2: Delete the attribute using the del operator .
In addition to using delattr, you can also remove the properties of an object using the del operator .
class Toado:
x = 10
y = -5
z = 0
point1 = Toado()
print('x = ',point1.x)
print('y = ',point1.y)
print('z = ',point1.z)
# Xoa bo thuoc tinh z
del Toado.z
print('--Sau khi xoa thuoc tinh z--')
print('x = ',point1.x)
print('y = ',point1.y)
Run the program, we get the same return result as example 1.
Previous article: compile () function in Python
Next lesson: The dict () function in Python
You should read it
May be interested
- The function set () in Pythonin this article, tipsmake.com will learn with you about set (), syntax, parameters and specific examples. invites you to read the track.
- Help () function in Pythonthe built-in help () function in python is used to display documents and invoke the help system of modules, functions, classes, keywords ...
- Sum () function in Pythonthe built-in function sum () in python returns the sum of all numbers in iterable.
- The slice () function in Pythonthe slice () function in python returns a slice object that helps you determine how to cut an existing string.
- The chr () function in Pythonin python, the chr () function returns a character (a string) from an integer that represents the unicode of the returned character.
- The iter () function in Pythoncontinuing with the topic of python's built-in functions, the article will introduce you to the iter () function with the syntax, usage as well as specific examples. invites you to read the track.
- The pow () function in Pythonthe pow () function built into python returns the value of x with the power of y (xy). if there is a third parameter, the function returns x to the power y, the module z.
- The reversed () function in Pythonthe reversed () function is one of the built-in functions in python, used to reverse the original string returning the iterator.
- Exec () function in Pythonthe exec () function used to execute python programs dynamically can be string or object code. how does exec () function syntax, what parameters do it have, and how is it used? invites you to read the track.
- Built-in Python functionsin the previous article, you learned that python has a basic function type, one is a built-in function, two are user-defined functions. today, we will learn about a list of python's built-in functions.