Brendan (Byong Chol) Choi is a highly accomplished tech lead at Secure Agility, with over 19 years of hands-on experience in the ICT industry. He is a certified Cisco, VMware, and Fortinet Engineer, and has worked for renowned enterprises such as Cisco Systems, NTT (Dimension Data), Fujitsu, as well as reputable Australian IT integrators like Telstra and Secure Agility. Brendan specializes in optimizing enterprise IT infrastructure management and enterprise business process optimization, utilizing both open and proprietary tools. He is the author of Python Network Automation: Building an Integrated Virtual Lab as well as Introduction to Python Network Automation: The First Journey. Through these publications, Brendan shared his knowledge with the IT community. He has trained over 200 Network and Systems Engineers on Python and Ansible Network automation and enjoys sharing industry-acquired knowledge through social media, blogging, and his YouTube channel. Brendan's current interests revolve around private cloud, enterprise networking, security, virtualization, and automation technologies. His dedication and passion for enterprise infrastructure management are evident in his commitment to continuous learning, knowledge sharing, and contributing to the ICT industry as a whole.

Erwin Medina is an experienced Senior Security and Network Engineer in the ICT industry with over 11 years of experience. He holds certifications in Cisco, Palo Alto, Fortinet, and Juniper technologies. Currently employed at CSIRO, Erwin contributes to the organization's security, network, and system operations and optimization, utilizing both open and proprietary tools. Erwin began his career as a field engineer in telecommunications before transitioning to ICT as a network engineer. Working with diverse networks in customers' production environments, he recognizes the crucial role of automation in simplifying complex network and security challenges. Embracing Ansible as his primary IT tool, Erwin has successfully transitioned away from manual-driven tasks. During his time at Telstra, Erwin had the privilege of being mentored by Brendan for over two years, gaining invaluable experience in leveraging Ansible and Python for enterprise network and security device management. Currently, Erwin applies Ansible in real-production scenarios to drive efficiency and productivity within his organization. He thrives on technical challenges and eagerly adapts to the ever-evolving ICT landscape, actively contributing to his organization's success. Erwin's commitment, expertise, and passion to share his knowledge with others make him a valuable asset in the ICT industry.

Chapter 1: Introduction to Python Network Automation.- Chapter 2: Learning Python Fundamentals on Windows.- Chapter 3: Practicing More Python Exercises.- Chapter 4: Navigating VMware Workstation.- Chapter 5: Creating an Ubuntu Linux Server.- Chapter 6: Creating a Fedora Linux Server.- Chapter 7: Mastering File Systems in Linux.- Chapter 8: Understanding TCP/IP Services in Linux.- Chapter 9: Using Regular Expressions for Network Automation.- Chapter 10: Exploring GNS3 Essentials.- Chapter 11: Cisco IOS, Linux, TFTP, and Telnet Lab.- Chapter 12: Setting Up a Python Automation Lab.- Chapter 13: Basic Telnet Lab.-Chapter 14: SSH, Paramiko, and Netmiko Lab.- Chapter 15: Automating Tasks with Cron in Python Lab.- Chapter 16: SNMP Discovery with Python Lab.- Chapter 17: Ansible and pyATS in virtualenv Lab.- Chapter 18: Sendmail and Twilio Notifications via Docker Lab.- Chapter 19: Cisco IOS Upgrade Tools Development 1.- Chapter 20: Cisco IOS Upgrade Tools Development 2.- Chapter 21: Building a Cisco IOS Upgrade Application.- Chapter 22: Upgrading Cisco IOS Routers Lab.- Chapter 23: Installing NetBox with Python.