Python hasattr() Function

In this python built-in functions tutorial, we will go through hasattr() function to check a specified object has a specific attribute or not. hastattr function in python returns only a Boolean value that means True or False.

Contents

1 Python hasattr() function
2 Syntax
3 Parameter
4 Return Value
5 Python hasattr example
- 5.1 Example:
6 Conclusion

Python hasattr function is a built-in function that is used to check a specified Object has a specified attribute or not. hasattr function return True or False Boolean value.

Syntax

The syntax of hasattr function in python is:-

hasattr(Object, attribute)

Parameter

Python hasattr function takes two parameters:-

Object:– Required, An Object.
attribute:- The name of the attribute you want to check if exists.

Return Value

Return value of hasattr function is True or False.

Python hasattr example

Here we will take some example to understand hasattr function.

Example:

class Student:
	first_name = 'Vishvajit'
	last_name = 'Rao'
	roll_no = 120
	course = 'BCA'
	
	def Details(self):
		print(f"My name is { self.first_name + self.last_name } and my roll no is {self.roll_no}. I am pursuing {self.course}.")
		
		
	
print(hasattr(Student, 'first_name'))
print(hasattr(Student, 'last_name'))
print(hasattr(Student, 'Details'))
print(hasattr(Student, 'Country'))

Output

True
True
True
False

Conclusion

In this tutorial, you have learned all about Python hasattr function to check a specified object has a specified attribute or not. If the specified object has a specified attribute, Then it will return True otherwise it will return False.

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Other Python Built-in Functions