# Overview
The **`itertools` module** in Python provides functions. These functions help in iterating through iterables.

The **`pairwise()` method** in the `itertools` module returns the successive overlapping pairs taken from the input iterable. The sequence of the output pairs is in the order of the elements in the iterable. This functionality was introduced in Python version 3.10.


## Syntax

```python
itertools.pairwise(iterable)
```

## Parameters

This method takes a parameter, `iterables`, which represents the iterable.

## Example

from itertools import pairwise

lst = [1,2,3,4,5]
print("Original list - ", lst)
print("Successive overlapping pairs - ", list(pairwise(lst)))

string = "hello educative"
print("Successive overlapping pairs of characters in a string- ", list(pairwise(string)))

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## Explanation

- Line 1: We import the `pairwise` function from the `itertools` module.
- Line 3: We define a list of numbers called `lst`.
- Line 4: We print `lst`.
- Line 5: We obtain successive overlapping pairs by invoking the `pairwise` function with `lst` as the argument.
- Line 7: We define a string called `string`.
- Line 8: We obtain a successive overlapping pairs of characters by invoking the `pairwise` function with `string` as the argument.

> **Note:** A string is iterable in python.

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What is the itertools.pairwise() method in python?

The pairwise() method in itertools returns successive overlapping pairs from an input iterable, introduced in Python 3.10.