hasattr(): determine whether an object has a specific attribute

hasattr(object, name) Returns Boolean ( True or False ) after checking attribute of the input object
object Object for which the attribute is to be checked .
name name of the the attribute .
Read more on Class Object and Attributes
Output of hasattr() is True or False.
class Animal():

     #class attributes

     #instance attributes
    def __init__(self1,name1,age):
        self1.name= name1

 #instantiate the Animal  class
print(hasattr(tiger,'age'))    # True 
print(hasattr(tiger,'height')) # False 
In above code we got True for the attribute age , but got False for attribute height as it is not declared.

Benefits of Using hasattr()

  • Safe Attribute Access: It allows for safe attribute access by checking for an attribute's existence before accessing it, thus avoiding potential AttributeErrors.
  • Dynamic Code: Useful in scenarios where we need to work with objects dynamically, and we might not know if an object has a specific attribute.
  • Conditional Logic: Enables writing conditional logic based on the presence or absence of attributes in objects, making our code more flexible and robust.

In summary, hasattr() is a handy function in Python for checking the existence of an attribute in an object, providing a way to write safer and more adaptable code.
All Built in Functions in Python setattr() delattr() getattr()

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