Python program to check for None tuple

Method 1:

One method to check for none tuple is to check if all elements are None by using the all() method with a generator expression.

# Python program to check for 
# none tuple 

# Initializing and printing tuple
myTuple = (None, None, None, None, None)
print("The elements of tuple : " + str(myTuple))

# Checking for None tuple
isNone = all(val is None for val in myTuple)
print("Is the given tuple a none tuple? " + str(isNone))

Output:

The elements of tuple : (None, None, None, None, None)
Is the given tuple a none tuple? True

Method 2:

One more method to check if the tuple is a none tuple or not is by comparing the number of none values in the tuple which is the length of the tuple. If both are the same then the tuple is none tuple otherwise not.

The length of the tuple is calculated using len() method and the count of none elements is found using the count() method.

# Python program to check for 
# none tuple 

# Initializing and printing 
# tuple
myTuple = (None, None, None, None, None)
print("The elements of tuple : " + str(myTuple))

# Checking for None tuple
isNone = len(myTuple) == myTuple.count(None)
print("Is the given tuple a none tuple? " + str(isNone))

Output:

The elements of tuple : (None, None, None, None, None)
Is the given tuple a none tuple? True