Need help i just started the whole thing

[snippsat]

when you say virtual environment you mean like virtualbox

Can say it similar but instead of creates a OS,it's make a new stand alone Python environment.
It's build into Python trough venv or there 3-party lib like Poetry.
Purpose of Python virtual environments is to create an isolated environment for Python projects,
means that each project can have its own dependencies,regardless of what dependencies OS Python or other project has.
Example.

# Make 
G:\div_code
λ python -m venv new_env
 
# Cd in
λ cd new_env\
 
# Activate
# Linux <source bin/activate>
G:\div_code\new_env
λ G:\div_code\new_env\Scripts\activate
 
# Install
(new_env) G:\div_code\new_env
λ pip install requests
Collecting requests ..... 
Successfully installed certifi-2020.12.5 chardet-4.0.0 idna-2.10 requests-2.25.1 urllib3-1.26.3
 
# List packages in environment 
(new_env) G:\div_code\new_env
λ pip list
Package    Version
---------- ---------
certifi    2020.12.5
chardet    4.0.0
idna       2.10
pip        20.2.3
requests   2.25.1
setuptools 49.2.1
urllib3    1.26.3
 
# Show
(new_env) G:\div_code\new_env
λ pip show requests
Name: requests
Version: 2.25.1
Summary: Python HTTP for Humans.
Home-page: https://requests.readthedocs.io
Author: Kenneth Reitz
Author-email: [email protected]
License: Apache 2.0
Location: g:\div_code\new_env\lib\site-packages
Requires: idna, certifi, chardet, urllib3