HomeProgramPython

The vars () function in Python

The vars () function in Python returns the __dict__ attribute of the passed object if the object has the __dict__ attribute .

The __dict__ attribute is a dictionary containing the object's changeable attributes.

Note: calling vars () without parameters returns a dictionary containing the local symbol table.

The syntax of vars () function in Python

 vars(object)

Parameters of vars () function:

The function vars () has a maximum of 1 parameter:

  1. object: can be a module, class, instance, or any object with the __dict__ attribute .

Value returned from vars ()

  1. Vars () returns the __dict__ property of the original passed object. If the object passed to vars () does not have the __dict__ attribute, then TypeError will result .
  2. If no arguments are passed, vars () works like the locals () function .

For example: How does the vars () function work?

 class Foo: 
 def __init__(self, a = 5, b = 10): 
 self.a = a 
 self.b = b 
 
 InstanceOfFoo = Foo() 
 print(vars(InstanceOfFoo))

Run the program, the result is:

 {'a': 5, 'b': 10}

See also: Built-in Python functions

4 ★ | 1 Vote
python functionsavailable python functionspython documentslearning python

You should read it

May be interested

  • The function set () in PythonThe function set () in Python
    in this article, tipsmake.com will learn with you about set (), syntax, parameters and specific examples. invites you to read the track.
  • Help () function in PythonHelp () function in Python
    the built-in help () function in python is used to display documents and invoke the help system of modules, functions, classes, keywords ...
  • Sum () function in PythonSum () function in Python
    the built-in function sum () in python returns the sum of all numbers in iterable.
  • The slice () function in PythonThe slice () function in Python
    the slice () function in python returns a slice object that helps you determine how to cut an existing string.
  • The chr () function in PythonThe chr () function in Python
    in python, the chr () function returns a character (a string) from an integer that represents the unicode of the returned character.
  • The iter () function in PythonThe iter () function in Python
    continuing 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 in Python
    the 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 in Python
    the reversed () function is one of the built-in functions in python, used to reverse the original string returning the iterator.
  • Exec () function in PythonExec () function in Python
    the 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 functionsBuilt-in Python functions
    in 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.

Python