#127 That Python code is on fire!

Sponsored by Datadog: pythonbytes.fm/datadog

Special guest: Kenneth Reitz

Brian #1: inline_python (for rust)

• “I just made a Frankenstein's monster: Python code embedded directly in rustlang code. Should I kill it before it escapes the lab?” - Mara Bos
• Writing some rust, and need a little Python?
• Maybe want to pop open a matplotlib window?
• This may be just the thing you need.
• see also:
  • https://pypi.org/project/bash/

Kenneth #2: Requests3: Under Way!

• Requests 2.x that you know and love is going into CVE-only mode (which it has been for a long time).
• Requests III is a new project which will bring async/await keywords to Requests.
• installable as requests3.
• Type-Annotations
• Python 3.6+

Michael #3: 🔥 Pyflame: A Ptracing Profiler For Python

• Pyflame is a high performance profiling tool that generates flame graphs for Python.
• Pyflame is implemented in C++, and uses the Linux ptrace(2) system call to collect profiling information.
• It can take snapshots of the Python call stack without explicit instrumentation
• Capable of profiling embedded Python interpreters like uWSGI.
• Fully supports profiling multi-threaded Python programs.
• Why use it?
  • Pyflame usually introduces significantly less overhead than the builtin profile (or cProfile) modules, and emits richer profiling data.
  • The profiling overhead is low enough that you can use it to profile live processes in production.

Brian #4: flit + src

• Currently a WIP PR.
• flit is easy.
  • Given a module or a source package.
  • flit init creates pyproject.toml and LICENSE files.
  • commit those to git
  • flit build creates a wheel
  • flit publish (builds and) publishes to whatever you have in your [.pypirc](https://docs.python.org/3/distutils/packageindex.html#the-pypirc-file)
• Changes in this PR
  • The flit project already has 2 types of projects.
    • just a module, like foo.py
    • a package (directory with __init__.py), like foo/__init__.py
  • This would add a 3rd and 4th.
    • just a module, but in src, like src/foo.py
    • a package in src, like src/foo/__init__.py
• May be cracking open a can of worms, but I’m ok with that.

Kenneth #5: $ pipx install pipenv

Michael #6: cheat.sh

• via Jon Bultmeyer
• Nothing to install, but works on the CLI
  • $ http cht.sh/python/sort+list
  • $ http cht.sh/python/connect+to+database
• Has a CLI client too with a proper shell
• Get started with http cht.sh/python/:learn
• Has a funky stealth mode too
• Editor integration VS Code & Vim
• cheat.sh uses selected community driven cheat sheet repositories and information sources, maintained by thousands of users, developers and authors all over the world

Extras

Brian:

• vi is good for beginners - fun read, for all you haters out there.
  • But use vim, not vi.
  • Better yet, IdeaVim for PyCharm or VSCodeVim for VS Code.
• nbstripout - command line tool to strip output from Jupyter Notebook files.
• We covered pyodide on episode 93, but here’s a cool article on it
  • Pyodide: Bringing the scientific Python stack to the browser

Michael:

• PyCon AU CFP
• LIGO Blackhole collision follow up: https://www.youtube.com/watch?v=BXID4teFfDc
  • via Dave Kirby and Matthew Feickert
• https://github.com/kylebebak/questionnaire like Bullet but for windows too
  • via Sander Teunissen

Kenneth (optional):

• PyColorado CFP
• PyOhio CFP
• PyRemote!

Jokes

Don’t know if I’ll do all of these, but I like them. 🙂 Brian and Kenneth, feel free to add yours if you have some!

MK: Ubuntu users are apt to get these jokes. MK: How many programmers does it take to kill a cockroach? Two: one holds, the other installs Windows on it. MK: A programmer had a problem. He thought to himself, 'I know, I'll solve it with threads!'. has Now problems. two he

(mildly offensive) KR: What’s the difference between a musician and a pizza? A pizza can feed a family of four.

(In collaboration with Jonatan Skogsfors) Python used to be directed by the BDFL, Guido. Now it’s directed by a steering council, GUIDs[0:4].