#      
## Overview

The **`yield`** and **`return`** statements are used to output expressions in functions.
A function pauses at a `yield` statement and resumes at the same place upon re-execution. A function fully exits at the encounter of a `return` statement without saving the function's state.

## Syntax
The syntax for the `yield` statement is given below:
```
yield expression
```

## Code
We’ll use the `yield` statement in the code below:

# Defining the generator function
def test_yields():
    yield 'Item 1'
    yield 'Item 2'

# Assigning the generator function
iter_object = test_yields()

# Each time the generator function is invoked it returns a different item
print(next(iter_object))
print(next(iter_object))

# Printing out the variable iter_object returns a generator object
print(iter_object)

## Code explanation
- Line 2: We define the generator function, `test_yields()`.
- Lines 3 and 4: The `test_yields()` function yields two items; `item 1` and `item 2`.
- Line 7: We assign `test_yields()` to the variable `iter_object`.
- Lines 10 and 11: The #key# `next()`: Built-in function that returns the next item in an iterator #key#  function is used to print out the next item in the generator function `test_yields()`.
- Line 14: We print out the `iter_object` without the `next()` function to return a generator object.

A function with a `yield` statement (generator function) returns a generator object. A generator is a type of iterator. Each item in the generator object can be retrieved in sequence by using the `next()` function.

## Syntax
The syntax for the `return` statement is given below: 
```
return expression
```

## Code
We’ll use the `return` statement in the code below:

# Defining the function
def test_return():
    return 'Item 1'
    return 'Item 2'

# Function exit at the first return statement
print(test_return())
print(test_return())

## Code explanation
- Line 2: We define the function `test_return()`.
- Lines 3 and 4: The `test_return()` function returns two items; `item 1` and `item 2`.
- Lines 7 and 8: We invoke the `test_return()` function twice and print out the result.

The `test_return()` exits immediately after the first `return` statement. It only returns `item 1`, even after re-execution, because the previous state of `test_return()` is not saved. 

How to use yield and return statements in Python

Overview

Syntax

Code

Code explanation

Syntax

Code

Code explanation