# Python – Test if Tuple contains K

• Last Updated : 17 Dec, 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 K. This kind of problem is common in data preprocessing steps. Letâ€™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``# Test if Tuple contains K``# using any() + map() + lambda`` ` `# initialize tuple``test_tup ``=` `(``10``, ``4``, ``5``, ``6``, ``8``)`` ` `# printing original tuple``print``(``"The original tuple : "` `+` `str``(test_tup))`` ` `# initialize K ``K ``=` `6`` ` `# Test if Tuple contains K``# using any() + map() + lambda``res ``=` `any``(``map``(``lambda` `ele: ele ``is` `K, test_tup))`` ` `# printing result``print``(``"Does tuple contain any K value ? : "` `+` `str``(res))`

Output :

```The original tuple : (10, 4, 5, 6, 8)
Does tuple contain any K value ? : True
```

Method #2 : Using loop
This task can be performed using loop as well using brute force constructs. We just iterate through the tuple and when we encounter K, we set flag to True and break.

 `# Python3 code to demonstrate working of``# Test if Tuple contains K``# Using loop`` ` `# initialize tuple``test_tup ``=` `(``10``, ``4``, ``5``, ``6``, ``8``)`` ` `# printing original tuple``print``(``"The original tuple : "` `+` `str``(test_tup))`` ` `# initialize K ``K ``=` `6`` ` `# Test if Tuple contains K``# Using loop``res ``=` `False` `for` `ele ``in` `test_tup:``    ``if` `ele ``=``=` `K:``        ``res ``=` `True``        ``break`` ` `# printing result``print``(``"Does tuple contain any K value ? : "` `+` `str``(res))`

Output :

```The original tuple : (10, 4, 5, 6, 8)
Does tuple contain any K value ? : True
```

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