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Python | True Record

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  • Last Updated : 24 Aug, 2022
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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. 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 not + 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




# Python3 code to demonstrate working of
# True Record
# using any() + map() + lambda + not
 
# initialize tuple
test_tup = (True, True, True, True)
 
# printing original tuple
print("The original tuple : " + str(test_tup))
 
# True Record
# using any() + map() + lambda + not
res = not any(map(lambda ele: not ele, test_tup))
 
# printing result
print("Is Tuple True ? : " + str(res))

Output : 

The original tuple : (True, True, True, True)
Is Tuple True ? : True

Method #2: Using all() This checks for truthness of all elements of tuple using all(), returns True if there is no False element. 

Python3




# Python3 code to demonstrate working of
# True Record
# using all()
 
# initialize tuple
test_tup = (True, True, True, True)
 
# printing original tuple
print("The original tuple : " + str(test_tup))
 
# True Record
# using all()
res = all(test_tup)
 
# printing result
print("Is Tuple True ? : " + str(res))

Output : 

The original tuple : (True, True, True, True)
Is Tuple True ? : True

Method #3 : Using count() and len() methods

Python3




# Python3 code to demonstrate working of
# True Record
 
# initialize tuple
test_tup = (True, True, True, True)
 
# printing original tuple
print("The original tuple : " + str(test_tup))
 
# True Record
res=False
if(test_tup.count(True)==len(test_tup)):
    res=True
# printing result
print("Is Tuple True ? : " + str(res))

Output

The original tuple : (True, True, True, True)
Is Tuple True ? : True

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