A hacker has tried to nmap one of the systems and now we have a 29MB tcpdump file of this activity. Can we identify which ports were open on this system? Sure we can... Lets see how! Tools: Wireshark, Scapy, Python ... https://www.youtube.com/watch?v=kNoY85RDlPk

Python's usage exploded even when it was merely new; lacking lots of features. One main reason for this was its great integration with C libraries. Combine this with the possibility of using Threads and you will get your holy grail: and easy language with threads which can use C libraries! BUT! But python needed a Global Interpreter Lock to be able to run C Libraries in its threads. In this video we will have a closer look at this concept. I will describe the necessity of GIL in Cpython and will show you why and how it is slowing down multi-threaded CPU hungry program. We will check the source code and will understand why both parties (defending and protesting the GIL removal) are claiming that the "You are slowing down Python!" 00:00 - Intro to the video 01:59 - Python vs. CPython 03:40 - Reference Counting in Python 07:20 - Ref Count Issues with Concurrency / Multi-Thread 09:33 - How GIL fixes Concurrency / Thread issues 14:35 - GIL Issues in CPU intensive threads sample 18:20 - Checking CPython for GIL 24:45 - GIL Removal History & nogil 26:55 - GIL removal side effects 31:00 - Further Reads (see desc) Some sources: nogil: https://github.com/colesbury/nogil-3.12 PEP703: https://peps.python.org/pep-0703/ LWN Article: https://lwn.net/Articles/939981/ BackBlaze: https://www.backblaze.com/blog/the-python-gil-past-present-and-future/ RealPython: https://realpython.com/python-gil/ ... https://www.youtube.com/watch?v=6254JnkLg1c

Wat Pho or Wat Po is a Buddhist temple complex in the Phra Nakhon District, Bangkok, Thailand. Calm, friendly and beautiful. A 3 min walk. #travel #thailand #buddha ... https://www.youtube.com/watch?v=ukoCd0DKpdQ

A Shepard tone is a auditory illusion, created by superposition of sine waves separated by octaves. It is used on various video games and movies to create a sense of suspension using an "illusional" endless increasing note. In this video, we will see how you can create such a Piano Midi using Python and Music21 library. Links: - A 3min video showing more samples of shepard tone by vox: https://www.youtube.com/watch?v=LVWTQcZbLgY - Shepard Tone on Wikipedia: https://en.wikipedia.org/wiki/Shepard_tone - Code comes from evpu; https://github.com/evpu/Shepard-tone-music21 - Marios Endless Stairs come from: https://www.youtube.com/watch?v=RhEmd5J2NSE ... https://www.youtube.com/watch?v=3yNL7U7_E-4