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Python: delattr() function

delattr() function

The delattr() function is used to delete the specified attribute from the specified object.

Version:

(Python 3)

Syntax:

delattr(object, name)

Parameter:

Name Description Required /
Optional
object The object from which name attribute is to be removed. Required.
name The name of one of the object’s attributes. Required.

Return value:

The delattr() doesn't return any value (returns None).

Example: Python delattr() function

class Rollnums:
  a = 15
  b = -7
  c = 0

rno = Rollnums() 

print('a = ',rno.a)
print('b = ',rno.b)
print('c = ',rno.c)

delattr(Rollnums, 'c')

print('--After deleting c attribute--')
print('a = ',rno.a)
print('b = ',rno.b)

Output:

a =  15
b =  -7
c =  0
--After deleting c attribute--
a =  15
b =  -7

Pictorial Presentation:

Python: Built-in-function - delattr() function

Python Code Editor:

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How do I check if a list is empty?

For example, if passed the following:

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if not a:
  print("List is empty")

Ref: https://bit.ly/2A4JXx9