#281: ohmyzsh + ohmyposh + mcfly + pls + nerdfonts = wow

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About the show

Sponsored: RedHat: Compiler Podcast

Special guest: Anna Astori

Michael #1: Take Your Github Repository To The Next Level 🚀️

• Step 0. Make Your Project More Discoverable
• Step 1. Choose A Name That Sticks
• Step 2. Display A Beautiful Cover Image
• Step 3. Add Badges To Convey More Information
• Step 4. Write A Convincing Description
• Step 5. Record Visuals To Attract Users 👀
• Step 6. Create A Detailed Installation Guide (if needed)
• Step 7. Create A Practical Usage Guide 🏁
• Step 8. Answer Common Questions
• Step 9. Build A Supportive Community
• Step 10. Create Contribution Guidelines
• Step 11. Choose The Right License
• Step 12. Plan Your Future Roadmap
• Step 13. Create Github Releases (know release drafter)
• Step 14. Customize Your Social Media Preview
• Step 15. Launch A Website

Brian #2: Fastero

• “Python timeit CLI for the 21st century.”
• Arian Mollik Wasi, @wasi_master
• Colorful and very usable benchmarking/comparison tool
• Time or Compare one ore more
  • code snippet
  • python file
  • mix and match, even
• Allows setup code before snippets run
• Multiple output export formats: markdown, html, csv, json, images, …
• Lots of customization possible
• Takeaway
  • especially for comparing two+ options, this is super handy

Anna #3:

• langid vs langdetect

langdetect

• This library is a direct port of Google's language-detection library from Java to Python
• langdetect supports 55 languages out of the box (ISO 639-1 codes):
• Basic usage: detect() and detect_langs()
• great to work with noisy data like social media and web blogs
• being statistical, works better on larger pieces of text vs short posts

langid

• hasn't been updated for a few years
• 97 languages
• can use Python's built-in wsgiref.simple_server (or fapws3 if available) to provide language identification as a web service. To do this, launch python langid.py -s, and access http://localhost:9008/detect . The web service supports GET, POST and PUT.
• the actual calculations are implemented in the log-probability space but can also have a "confidence" score for the probability prediction between 0 and 1: > from langid.langid import LanguageIdentifier, model > identifier = LanguageIdentifier.from_modelstring(model, norm_probs=True) > identifier.classify("This is a test") > ('en', 0.9999999909903544) - minimal dependencies - relatively fast - NB algo, can train on user data.

Michael #4: Watchfiles

• by Samual Colvin (of Pydantic fame)
• Simple, modern and high performance file watching and code reload in python.
• Underlying file system notifications are handled by the Notify rust library.
• Supports sync watching but also async watching
• CLI example
• Running and restarting a command¶
  • Let's say you want to re-run failing tests whenever files change. You could do this with watchfiles using
  • Running a command: watchfiles 'pytest --lf``'

Brian #5: Slipcover: Near Zero-Overhead Python Code Coverage

• From coverage.py twitter account, which I’m pretty sure is Ned Bachelder
• coverage numbers with “3% or less overhead”
• Early stages of the project.
• It does seem pretty zippy though.
• Mixed results when trying it out with a couple different projects
  • flask:
    • just pytest: 2.70s
    • with slipcover: 2.88s
    • with coverage.py: 4.36s
  • flask with xdist n=4
    • pytest: 2.11 s
    • coverage: 2.60s
    • slipcover: doesn’t run (seems to load pytest plugins)
• Again, still worth looking at and watching. It’s good to see some innovation in the coverage space aside from Ned’s work.

Anna #6:

• scrapy vs robox

scra-py

• shell to try out things: fetch url, view response object, response.text
• extract using css selectors or xpath
• lets you navigate between levels e.g. the parent of an element with id X
• crawler to crawl websites and spider to extract data
• startproject for project structure and templates like settings and pipelines
• some advanced features like specifying user-agents etc for large scale scraping.
• various options to export and store the data
• nice features like LinkExtractor to determine specific links to extract, already deduped.
• FormRequest class

robox

• layer on top of httpx and beautifulsoup4
• allows to interact with forms on pages: check, choose, submit

Extras

Michael:

• ohmyzsh + ohmyposh + mcfly + iterm2 + pls + nerdfonts = wow
• Watch the video we discussed here

Joke:

• Out for a byte