Introduction: Use generator to save overhead when reading large text files. This is a quick note to help with reducing the memory overhead when reading large text files. I run into a problem where I need to process large text files between a few hundred MB to a few GB
Introduction: Why motivation alone is not enough, read on to find out what ultimately worked for me. You see it all the time, best-selling books, speakers, TED Talks, all aim to give you the motivation you need to go out and conquer the world. They say that we are only
Introduction: Stand for Justice #BlackLivesMatter. I started writing blogs almost a decade ago in 2011, mainly about technology, but sometimes also about fun little things like shoes and basketball. One thing I like about technology is its binary nature, it either works or it doesn't; a packet needs
Introduction: Quick introduction to eXtensible Markup Language (XML), Data Object Model (DOM), and their usage in Python. The subject of working with XML and DOM comes up quite often in network engineering when we start to work with data structure and automation. Usually, this is in the context of understanding
Introduction: New Course on Packet Pushers Ignition I am happy to announce the latest collaboration course with Packet Pushers on their Ignition platform. The course is titled "Practical Python Lessons for Networking": Course: https://ignition.packetpushers.net/courses/practical-python-lessons-for-networking/ Ignition: https://ignition.packetpushers.net/ Here is a high-level
Introduction: Python doctest module example. Python doctest module is a way to test simple Python functions via the interactive shell output. It simply searches through a set of text, such as docstring, and looks for what appears to be interactive Python sessions, and executes those sessions to compare the output.
Introduction: My notes on installing Cisco CML2.0 on ESXi 6.7 I have used Cisco Virtual Internet Routing Lab (VIRL) pretty extensively as a sandbox lab in my books and classes. I like the fact that it contains all the Cisco images as a bundle, from legacy IOSv to
Introduction: A quick start for using Guestshell and Python on the Cisco IOS-XE platform It has been many years since I explored onboard shell and Python options for Cisco platforms, the post on Cisco Nexus 3000 (https://blog.pythonicneteng.com/2013/06/quickly-change-cisco-nexus-config-via.html) was the last I can recall.
Introduction: Thoughts about the experience of translating my book from English into Mandarin Chinese I was born in Taiwan R.O.C and moved to the United States at the age of 13. Shortly after graduating from elementary school, my parents were divorced. Long story short, after moving around a
Introduction: An Q&A on the topic of Network Programming and the Suitability of Python Here is an excerpt of the Medium post by Packt Publishing for a Q&A session with me on the topic of Network Programmability and Python (July 28th, 2020 4 min read): Link:
Q&A for new LinkedIn Learning course for Cisco DevNet Associate Cert Prep 1 I am excited about the newly released course on LinkedIn Learning titled 'Cisco DevNet Associate Cert Prep 1: Software Development and Design': I thought it might be a good idea to write a
How to improve CAB from a network engineer's perspective Last week, Monika from Packt Publishing's marketing team shared Kenneth Hunt's kind video book review for my book with me. First, of course, I want to thank Kenneth for taking the time to do such