# Python – Remove given character from first element of Tuple

• Last Updated : 09 Nov, 2022

Given a Tuple list, remove K character from 1st element of Tuple being String.

Input : test_list = [(“GF\$g!”, 5), (“!i\$s”, 4), (“best!\$”, 10)], K = ‘\$’

Output : [(‘GFg!’, 5), (‘!is’, 4), (‘best!’, 10)]

Explanation : First element’s strings K value removed.

Input : test_list = [(“GF\$g!”, 5), (“best!\$”, 10)], K = ‘\$’

Output : [(‘GFg!’, 5), (‘best!’, 10)]

Explanation : First element’s strings K value removed.

Method #1 : Using replace() + list comprehension

In this, we use replace() to perform the task of removing of K character and list comprehension to reform tuple.

## Python3

 `# Python3 code to demonstrate working of``# Remove K character from first element of Tuple``# Using replace() + list comprehension` `# initializing list``test_list ``=` `[(``"GF ! g !"``, ``5``), (``"! i ! s"``, ``4``), (``"best !!"``, ``10``)]` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))` `# initializing K``K ``=` `"!"` `# replace with empty string removes the desired char.``res ``=` `[(sub[``0``].replace(K, ''), sub[``1``]) ``for` `sub ``in` `test_list]` `# printing result``print``(``"The filtered tuples : "` `+` `str``(res))`

Output

```The original list is : [('GF!g!', 5), ('!i!s', 4), ('best!!', 10)]
The filtered tuples : [('GFg', 5), ('is', 4), ('best', 10)]```

Method #2 : Using translate() + list comprehension

In this, we perform task of removal using translate(), which needs conversion to ASCII using ord(), and replaced with an empty character.

## Python3

 `# Python3 code to demonstrate working of``# Remove K character from first element of Tuple``# Using translate() + list comprehension` `# initializing list``test_list ``=` `[(``"GF ! g !"``, ``5``), (``"! i ! s"``, ``4``), (``"best !!"``, ``10``)]` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))` `# initializing K``K ``=` `"!"` `# translation after conversion to ascii number``res ``=` `[(sub[``0``].translate({``ord``(K): ``None``}), sub[``1``]) ``for` `sub ``in` `test_list]` `# printing result``print``(``"The filtered tuples : "` `+` `str``(res))`

Output

```The original list is : [('GF!g!', 5), ('!i!s', 4), ('best!!', 10)]
The filtered tuples : [('GFg', 5), ('is', 4), ('best', 10)]```

Method #3: Using for loop

## Python3

 `# Python3 code to demonstrate working of``# Remove K character from first element of Tuple` `# initializing list``test_list ``=` `[(``"GF!g!"``, ``5``), (``"!i!s"``, ``4``), (``"best!!"``, ``10``)]` `# printing original list``print``(``"The original list is : "` `+` `str``(test_list))` `# initializing K``res1 ``=` `[]``K ``=` `"!"``for` `i ``in` `test_list:``    ``res ``=` `""``    ``for` `j ``in` `i[``0``]:``        ``if``(j !``=` `K):``            ``res ``+``=` `j``    ``x ``=` `(res, i[``1``])``    ``res1.append(x)`  `# printing result``print``(``"The filtered tuples : "` `+` `str``(res1))`

Output

```The original list is : [('GF!g!', 5), ('!i!s', 4), ('best!!', 10)]
The filtered tuples : [('GFg', 5), ('is', 4), ('best', 10)]```

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