Related Articles
Python – Filter tuple with all same elements
• Last Updated : 02 Sep, 2020

Given List of tuples, filter tuples which have same values.

Input : test_list = [(5, 6, 5, 5), (6, 6, 6), (9, 10)]
Output : [(6, 6, 6)]
Explanation : 1 tuple with same elements.

Input : test_list = [(5, 6, 5, 5), (6, 5, 6), (9, 10)]
Output : []
Explanation : No tuple with same elements.

Method #1 : Using list comprehension + set() + len()

In this, we check for length of set converted tuple to be 1, if that checks out, tuple is added to result, else, omitted.

## Python3

 `# Python3 code to demonstrate working of ``# Filter similar elements Tuples``# Using list comprehension + set() + len()`` ` `# initializing list``test_list ``=` `[(``5``, ``6``, ``5``, ``5``), (``6``, ``6``, ``6``), (``1``, ``1``), (``9``, ``10``)]`` ` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))`` ` `# length is computed using len()``res ``=` `[sub ``for` `sub ``in` `test_list ``if` `len``(``set``(sub)) ``=``=` `1``]``         ` `# printing results``print``(``"Filtered Tuples : "` `+` `str``(res))`
Output
```The original list is : [(5, 6, 5, 5), (6, 6, 6), (1, 1), (9, 10)]
Filtered Tuples : [(6, 6, 6), (1, 1)]
```

Method #2 : Using filter() + lamdba + set() + len()

In this, we perform task of filtering using filter(), and single element logic is checked in lambda function using set() and len().

## Python3

 `# Python3 code to demonstrate working of ``# Filter similar elements Tuples``# Using filter() + lamdba + set() + len()`` ` `# initializing list``test_list ``=` `[(``5``, ``6``, ``5``, ``5``), (``6``, ``6``, ``6``), (``1``, ``1``), (``9``, ``10``)]`` ` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))`` ` `# end result converted to list object ``# filter extracts req. tuples``res ``=` `list``(``filter``(``lambda` `sub : ``len``(``set``(sub)) ``=``=` `1``, test_list))``         ` `# printing results``print``(``"Filtered Tuples : "` `+` `str``(res))`
Output
```The original list is : [(5, 6, 5, 5), (6, 6, 6), (1, 1), (9, 10)]
Filtered Tuples : [(6, 6, 6), (1, 1)]
```

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.

My Personal Notes arrow_drop_up