
# OrderedSet() in Python

In [Python](https://www.educative.io/answers/what-is-python), a **set** is a built-in data structure that only stores unique items.

Similar to [OrderedDict](https://www.educative.io/answers/what-is-an-ordereddict-in-python), the `OrderedSet` maintains the insertion order of the elements.

## Installation

The `OrderedSet()` function is provided by the `sortedcollections` module. This can be installed using `pip`:

```
pip install sortedcollections
```

## Syntax

```
OrderedSet(iterable)
```

## Parameter

- `iterable`: This is the iterable to be converted to `OrderedSet`. The iterable can be a set, list, and so on.

## Return value

This method returns an instance of `OrderedSet`.

## Code

Let's look at an example:

from sortedcollections import OrderedSet

iterable = "hello-educative"

ordr_set = OrderedSet(iterable)

print(ordr_set)

python39


## Explanation

- Line 1: We import `OrderedSet` from the `sortedcollections` module.
- Line 3: We define a string iterable called `iterable`.
- Line 5: We create an ordered set called `ordr_set` by passing the `iterable` as an argument to the `OrderedSet` constructor.
- Line 7: We print `ordr_set`.

From the output, we can observe that no duplicate entries are present in the set, and the insertion order is preserved.


sortedcollections.tar.gz

What is OrderedSet() in Python?

OrderedSet in Python maintains unique items and preserves insertion order. Installed via `pip install sortedcollections`.