Skip to content
Related Articles

Related Articles

Python | Check if tuple has any None value
  • Last Updated : 26 Nov, 2019

Sometimes, while working with Python, we can have a problem in which we have a record and we need to check if it contains all valid values i.e has any None value. This kind of problem is common in data preprocessing steps. Let’s discuss certain ways in which this task can be performed.

Method #1 : Using any() + map() + lambda
Combination of above functions can be used to perform this task. In this, we check for any element using any() and extension of logic is done by map() and lambda.




# Python3 code to demonstrate working of
# Check if tuple has any None value
# using any() + map() + lambda
  
# initialize tuple
test_tup = (10, 4, 5, 6, None)
  
# printing original tuple
print("The original tuple : " + str(test_tup))
  
# Check if tuple has any None value
# using any() + map() + lambda
res = any(map(lambda ele: ele is None, test_tup))
  
# printing result
print("Does tuple contain any None value ? : " + str(res))
Output :
The original tuple : (10, 4, 5, 6, None)
Does tuple contain any None value ? : True

 

Method #2 : Using not + all()
This checks for truthness of all elements of tuple using all() and with not, returns True if there is no None element.






# Python3 code to demonstrate working of
# Check if tuple has any None value
# using not + all()
  
# initialize tuple
test_tup = (10, 4, 5, 6, None)
  
# printing original tuple
print("The original tuple : " + str(test_tup))
  
# Check if tuple has any None value
# using not + all()
res = not all(test_tup)
  
# printing result
print("Does tuple contain any None value ? : " + str(res))
Output :
The original tuple : (10, 4, 5, 6, None)
Does tuple contain any None value ? : True

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course

My Personal Notes arrow_drop_up
Recommended Articles
Page :