# Transpose Dual Tuple List in Python

Sometimes, while working with Python tuples, we can have a problem in which we need to perform tuple transpose of elements i.e, each column element of dual tuple becomes a row, a 2*N Tuple becomes N * 2 Tuple List. This kind of problem can have possible applications in domains such as web development and day-day programming. Let’s discuss certain ways in which this task can be performed.

```Input : test_list = [(2, 'Gfg'), (3, 'is'), (94, 'Best')]
Output : ([2, 3, 94], ['Gfg', 'is', 'Best'])
Input : test_list = [(8, 1)]
Output : ([8, 1])
```

### Method #1: Using loop

This is one of the ways in which this problem can be solved. In this, we employ a brute force strategy to perform the transpose by constructing 2 lists and combining them to get the transposed results.

 `# Python3 code to demonstrate working of  ` `# Transpose Tuple List ` `# Using loop ` ` `  `# hlper_fnc function ` `def` `hlper_fnc(test_list): ` `    ``# declare empty list ` `    ``sub1 ``=` `[] ` `    ``sub2 ``=` `[] ` ` `  `    ``res ``=` `(sub1, sub2) ` `    ``for` `sub ``in` `test_list: ` `        ``# add element in the last of the list ` `        ``sub1.append(sub[``0``]) ` `        ``sub2.append(sub[``1``]) ` ` `  `    ``return` `res ` ` `  `# initializing list ` `test_list ``=` `[(``5``, ``1``), (``3``, ``4``), (``9``, ``7``), (``10``, ``6``)] ` ` `  `# printing original list ` `print``(``"The original list is : "` `+` `str``(test_list)) ` ` `  `# Transpose Tuple List ` `# Using loop ` `res ``=` `hlper_fnc(test_list) ` ` `  `# printing result  ` `print``(``"The transposed tuple list : "` `+` `str``(res))  `

Output:

```The original list is : [(5, 1), (3, 4), (9, 7), (10, 6)]
The transposed tuple list : ([5, 3, 9, 10], [1, 4, 7, 6])
```

### Method #2 : Using loop + `zip()` + `tuple()`

The combination of above functionalities can also be used to solve this problem. In this, we perform the task of forming transpose and extract columner elements using `zip()`.

 `# Python3 code to demonstrate working of  ` `# Transpose Tuple List ` `# Using zip() + tuple() ` ` `  `# hlper_fnc function ` `def` `hlper_fnc(test_list): ` `    ``return` `tuple``(``zip``(``*``test_list)) ` ` `  `# initializing list ` `test_list ``=` `[(``5``, ``1``), (``3``, ``4``), (``9``, ``7``), (``10``, ``6``)] ` ` `  `# printing original list ` `print``(``"The original list is : "` `+` `str``(test_list)) ` ` `  `# Transpose Tuple List ` `# Using zip() + tuple() ` `sub1, sub2 ``=` `hlper_fnc(test_list)  ` `res ``=` `(``list``(sub1), ``list``(sub2)) ` ` `  `# printing result  ` `print``(``"The transposed tuple list : "` `+` `str``(res))  `

Output:

```The original list is : [(5, 1), (3, 4), (9, 7), (10, 6)]
The transposed tuple list : ([5, 3, 9, 10], [1, 4, 7, 6])
```

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