#        
## Overview
A **pie chart** is a graphic representation of quantitative information by means of a circle divided into sectors, in which the relative sizes of the areas (or central angles) of the sectors correspond to the relative sizes or proportions of the quantities.

To create a pie chart in `Matplotlib` we use the `pie()` method.

## Creating a pie chart
The `pie()` method takes the parameter value `data array` which represents the wedge sizes of the pie chart.
## Code

from matplotlib.pyplot import pie, show
from numpy import array

data_set = array([50, 20, 25, 15])

pie(data_set)
show() 

## Explanation
* Line 1: We import the `pie()` and `show()` functions from `matplotlib.pyplot` module.
* Line 2: We import the `array()` function from `NumPy` library.

* Line 4: We use the `array()` method to create a data array.

* Line 6: We use the `pie()` method to plot a pie chart.
* Line 7: We use the `show()` method to show our plot.

## Adding a label to a pie chart
To add a label to a pie chart, the `pie()` function must take another parameter value called  `labels`.
## Syntax
```
pie(x, labels)
```
## Code

from matplotlib.pyplot import pie, show
from numpy import array

data_set = array([50, 20, 25, 15])
my_labels = ["Tomatoes", "Apples", "Mangoes", "Tiger nuts"]

pie(data_set, labels = my_labels)
show() 

## Code explanation
* Line 1: We import the `pie()` and `show()` functions from `matplotlib.pyplot` module.
* Line 2: We import the `array()` function from `NumPy` library.

* Line 4: We use the `array()` method to create a data array `data_set`.
* Line 5: We create a list  variable `my_labels` which will serve as the value for the `label` parameter.
* Line 7: We use the `pie()` method to plot the data array `data_set` and pass the variable `my_labels` as the `labels` parameter value.
* Line 8: We use the `show()` method to show our plot.


How to add labels to a pie chart using Matplotlib in Python

Import Matplotlib's pie() and show() functions, create a data array, assign labels, and plot.