seanjensengrey

This is a small demo of how to create a library in Rust and call it from Python (both CPython and PyPy) using the CFFI instead of ctypes.

Based on http://harkablog.com/calling-rust-from-c-and-python.html (dead) which used ctypes

CFFI is nice because:

• Reads C declarations (parses headers)
• Works in both CPython and PyPy (included with PyPy)
• Lower call overhead than ctypes

andytill

Covering more with unit tests

Unit tests are quick to run, quick to write in bulk, target a small area of code, are not prone to timing issues and other intermittent failures and have excellent reporting tools.

However, actual usage is often prevented by side effects which require resources such as processes, ports and ets tables to exist or will crash the test.

Separating code into pure and impure functions can help and is typically beneficial. It can also harm readability, and even then not enable full coverage using unit testing. For example:

receive_message(Msg) ->

oakes

Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

skippy

#cloud-config
---
coreos:
  units:
  - name: update-fleet-metadata.service
    command: start
    content: |-
      [Unit]
      Description=Update Fleet metadata tag
      Before=fleet.service

gvx

from collections import OrderedDict
from inspect import Parameter, signature
from itertools import chain, starmap
from operator import itemgetter

__all__ = ['namedtuple']

dict_property = property(lambda self: OrderedDict(zip(self._fields, self)),
                         doc='dictionary for instance variables (if defined)')

paf31

This blog post series has moved here.

You might also be interested in the 2016 version.

joakimk

This runs a build for a small elixir (phoenix) project in about 40 seconds by caching as much of the compiled files as possible.

We've been using this for months in multiple projects without any issues. Please ping be if there is any issues with this script and I'll update it.

It should be generic enough to work on any elixir app using mix.

If you have a elixir_buildpack.config, then enable that section in the build script to keep versions in sync!

2016-08-09: Updated to newer Erlang and Elixir and fixed curl command.

garybernhardt

(Chapters marked with * are already written. This gets reorganized constantly
and 10 or so written chapters that I'm on the fence about aren't listed.)

Programmer Epistemology
  * Dispersed Cost vs. Reduced Cost
  * Verificationist Fallacy
  * Mistake Metastasis
  The Overton Window
  Epicycles All The Way Down
  The Hyperspace Gates Were Just There

eevee

class WeakProperty:
    """Descriptor that automatically holds onto whatever it contains as a weak
    reference.  Reading this attribute will never raise `AttributeError`; if
    the reference is broken or missing, you'll just get `None`.

    The actual weak reference is stored in the object's `__dict__` under the
    given name, so this acts as sort of a transparent proxy that lets you
    forget you're dealing with weakrefs at all.

    Of course, if you try to assign a value that can't be weak referenced,

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---