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