# Python | set() method

Set, a term in mathematics for a sequence consisting of distinct language is also extended in its language by Python and can easily be made using set().

`set()` method is used to convert any of the iterable to sequence of iterable elements with dintinct elements, commonly called Set.

Syntax : set(iterable)

Parameters : Any iterable sequence like list, tuple or dictionary.

Returns : An empty set if no element is passed. Non-repeating element iterable modified as passed as argument.

Don’t worry if you get an unordered list from the set. Sets are unordered. Use sorted(set(sampleList)) to get it sorted

Code #1 : Demonstrating set() with list and tuple

 `# Python3 code to demonstrate the  ` `# working of set() on list and tuple ` ` `  `# initializing list  ` `lis1 ``=` `[ ``3``, ``4``, ``1``, ``4``, ``5` `] ` ` `  `# initializing tuple ` `tup1 ``=` `(``3``, ``4``, ``1``, ``4``, ``5``) ` ` `  `# Printing iterables before conversion ` `print``(``"The list before conversion is : "` `+` `str``(lis1)) ` `print``(``"The tuple before conversion is : "` `+` `str``(tup1)) ` ` `  `# Iterables after conversion are  ` `# notice distinct and elements ` `print``(``"The list after conversion is : "` `+` `str``(``set``(lis1))) ` `print``(``"The tuple after conversion is : "` `+` `str``(``set``(tup1))) `

Output:

```The list before conversion is : [3, 4, 1, 4, 5]
The tuple before conversion is : (3, 4, 1, 4, 5)
The list after conversion is : {1, 3, 4, 5}
The tuple after conversion is : {1, 3, 4, 5}
```

Properties of set()
• No parameters are passed to create the empty set
• Dictionary can also be created using set, but only keys remain after conversion, values are lost.

Code #2: Demonstration of working of set on dictionary

 `# Python3 code to demonstrate the  ` `# working of set() on dictionary ` ` `  `# initializing list  ` `dic1 ``=` `{ ``4` `: ``'geeks'``, ``1` `: ``'for'``, ``3` `: ``'geeks'` `}  ` ` `  `# Printing dictionary before conversion ` `# internaly sorted ` `print``(``"Dictionary before conversion is : "` `+` `str``(dic1)) ` ` `  `# Dictionary after conversion are  ` `# notice lost keys ` `print``(``"Dictionary afer conversion is : "` `+` `str``(``set``(dic1))) `

Output:

```Dictionary before conversion is : {1: 'for', 3: 'geeks', 4: 'geeks'}
Dictionary afer conversion is : {1, 3, 4}
```

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