os module: The os module provides a way to interact with the operating system, including functions for file operations, environment variables, and process management.

subprocess module: The subprocess module provides a way to spawn new processes and interact with them. It is commonly used for running system commands and scripts from within a Python program.

paramiko module: The paramiko module provides an implementation of the SSH protocol in Python, allowing you to connect to and interact with remote servers over a secure channel.

fabric module: The fabric module is a high-level library for executing remote shell commands, copying files, and deploying applications. It is built on top of paramiko and provides a simple and intuitive interface for common DevOps tasks.

boto3 module: The boto3 module provides a way to interact with the Amazon Web Services (AWS) API in Python, allowing you to automate the creation and management of AWS resources.

requests module: The requests module provides a way to send HTTP/HTTPS requests from Python. It is commonly used for web scraping, API integration, and monitoring.

PyYAML module: The PyYAML module provides a way to parse and generate YAML files in Python, which is commonly used for configuration management.

pytest module: The pytest module provides a way to write and run tests in Python. It is commonly used for automated testing in DevOps.

logging module: The logging module provides a way to log messages from a Python program, which is important for monitoring and debugging.