> Markdown version of [/magazine/550-dev-digest-155-hashtable-breakthrough-multi-threaded-python-and-deepseek-leaks](https://www.wearedevelopers.com/magazine/550-dev-digest-155-hashtable-breakthrough-multi-threaded-python-and-deepseek-leaks). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Dev Digest 155: Hashtable breakthrough, Multi-threaded Python and DeepSeek Leaks

**By:** [Daniel Cranney](https://www.wearedevelopers.com/@daniel-cranney)

**Published:** February 17, 2025

## Inside last week’s [Dev Digest 155](https://newsletter.wearedevelopers.com/155).

https://www.youtube.com/embed/jeSxia9wr34

🤯 40 year old hashtable myth busted!  
🐍 Multi threaded and multi core Python  
🐋 There’s been a DeepSeek leak  
🤷‍♂️ People don’t care about your AI feature  
🔐 Application Security Trends 2025  
😳 The end of programming as we know it  
😭 Despair Driven Development  
📄 Scan documents with JavaScript  
🎮 Gaming on a router?

🗞️ Join over 150,000 developers already subscribed to the Dev Digest to get your weekly round-up of tech news, tips and tricks, jobs, events and more, delivered to your inbox. [Subscribe here](https://wearedevelopers.com/devdigest).



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