Requirements_txt.md

Requirements.txt

Introduction

requirements.txt is a crucial file in Python projects for managing dependencies. It lists all the packages required to run your project, including their specific versions. This file ensures consistency and simplifies the setup process for other developers working on the project.

How to use?

Creating a requirements.txt file

To create and update a requirements.txt file, use the following command in your terminal:

pip freeze > requirements.txt

This command generates a list of all installed packages and their versions in your virtual environment and saves them to a requirements.txt file.

Installing dependencies from a requirements.txt file

To install the dependencies listed in a requirements.txt file, use the following command in your terminal:

pip install -r requirements.txt

This command reads the packages and their versions from the requirements.txt file and installs them in your virtual environment.

Resources:

• How to Create and Maintain a requirements.txt

Best Practices

1. Use a virtual environment: Always work within a virtual environment to isolate your project's dependencies from your system's global Python environment.

   Guide to Python Virtual Environments

2. Keep the file up-to-date: Regularly update the requirements.txt file as you add, remove, or update dependencies.

3. List only necessary dependencies: Only list the Python modules and packages your project needs. Do not include unnecessary modules or packages, as this makes the txt file bloated and difficult to read. It is also a waste of resources.

More Best Practices:

• 10 Python Requirements.txt Best Practices