Python Basics
Installation
There are many options to install Python, there are different options out there.
Virtual Environments
A virtual environment in Python is a self-contained space or container that allows you to have separate and isolated Python environments on a single machine.
When you work on different projects or use different libraries in Python, it’s possible that those projects or libraries may have conflicting dependencies or versions. A virtual environment helps solve this problem by creating a separate environment for each project, with its own set of dependencies and Python packages.
Type the following commands to create a new virtual environment, activate it and install the dependencies:
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# Create virtual environment
python3 -m venv venv
# Activate it
source venv/bin/activate
# Install dependencies
pip install -r requirements.txt
Dependencies
They are usually stored in a requirements.txt file.
In order to create it from the dependencies you have installed, type:
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pip freeze > requirements.txt
In order to install them:
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pip install -r requirements.txt