Here starts your journey in the marvelous world of Python, a very versatile programming language, popular for being accessible for beginner programmers and yet very powerful.
### Setup
First, you'll need to have Python installed on your machine. In those exercises we use Python 3.10, we then recommend you to install Python 3.10 or higher.
- [Download and install Python](https://www.python.org/downloads/)
To write your code, you may use your favorite IDE. If you don't have one, you can go for Visual Studio Code with Python extension pack installed:
> Setup may vary in base of your Operating System or machine specificities, if you feel stuck check on internet for the specific steps that suits your configuration.
### Instructions
Create a file `hello_python.py` and write inside a function `say_hello_python` that returns the string `"Hello Python!"`.
```python
def say_hello_python():
# this is a function,
# write your code here
```
### Usage
Here is a possible code to test your function. Put it in another file (ex: `test.py`):
```python
from hello_python import say_hello_python
print(say_hello_python())
```
Run your test file with the following command:
```console
$ python3 test.py
Hello Python!
$
```
> `test.py` file should be in the same directory of `hello_python.py` in order to work.
### Hints
- Python uses indentation to indicate in which block your code will run (many other languages uses parenthesis instead). It is then very important to indent your code properly.
-`return` is a special world used to say which value a function should return (a function could also not return anything).
- In `test.py` we are calling another function named `print`. This function is already present in Python standard library so we don't have to create it. This function at its core is made to write strings in the standard output.
### References
- [Indentation in Python](https://www.w3schools.com/python/gloss_python_indentation.asp)
