decentral1se

---

- hosts: localhost
  connection: local
  tasks:
    - name: Ensure mandatory variables specified
      assert:
        that: env is defined
    - name: Show execution path
      debug:

decentral1se

Python has acquired new super powers since version 3.5 and the arrival of PEP 484. Type hints are a new programming language feature which python projects can progressively adopt to improve their confidence in their code base doing what it is supposed to be doing.

Django, the massively used Python web framework, has yet to receive comprehensive core integration for type hinting. While much effort is being put into upgrading many open source community projects (such as Zulip, one of the biggest success stories), Django has yet to receive this effort and focus. We want to make a big push this FOSDEM 2019 to see if we can take the big leap into bringing type hints to Django core!

Following the lead of the Zulip developers (see https://blog.zulip.org/2016/10/13/static-types-in-python-oh-mypy/ for more) format used at PyCon 2016, we intend to open up a collaborative space for making fly-by contributions to adding type hints to the Django code base.

Volunteers can come with their laptop, install the project so

decentral1se

---

- src: https://github.com/openstack-infra/zuul-jobs.git
  version: master
  path: foobar
  scm: git

decentral1se

devel develop-inst-noop: /home/decentral1se/hacking/pycontribs/molecule-goss
devel installed: ansible==2.10.0.dev0,ansible-lint==4.1.0,anyconfig==0.9.10,apipkg==1.5,appdirs==1.4.3,arrow==0.15.2,asn1crypto==0.24.0,aspy.yaml==1.3.0,atomicwrites==1.3.0,attrs==19.1.0,bcrypt==3.1.7,binaryornot==0.4.4,Cerberus==1.3.1,certifi==2019.9.11,cffi==1.12.3,cfgv==2.0.1,chardet==3.0.4,Click==7.0,click-completion==0.5.1,colorama==0.4.1,cookiecutter==1.6.0,coverage==4.5.4,cryptography==2.7,decorator==4.4.0,docker==4.0.2,dogpile.cache==0.7.1,entrypoints==0.3,execnet==1.7.1,fasteners==0.15,flake8==3.7.8,future==0.17.1,git-url-parse==1.2.2,identify==1.4.7,idna==2.8,importlib-metadata==0.23,iso8601==0.1.12,Jinja2==2.10.1,jinja2-time==0.2.0,jmespath==0.9.4,jsonpatch==1.24,jsonpointer==2.0,keystoneauth1==3.17.1,MarkupSafe==1.1.1,mccabe==0.6.1,mock==3.0.5,molecule==3.0a1,-e git+https://github.com/pycontribs/molecule-goss@a951b2dd2cd8144b26d73df762aa3c3bdd09155b#egg=molecule_goss,monotonic==1.5,more-itertools==7.2.0,munch==2.3.2,netif

decentral1se

import attr
import trio
import trio.abc
import trio.testing


@attr.s(auto_attribs=True)
class Proto:
    stream: trio.abc.Stream

decentral1se

import trio
import trio.testing


class Protocol:
    def __init__(self, stream):
        self.stream = stream

    async def aclose(self):
        await self.stream.aclose()

decentral1se

# 1 (ain't working, weird usage anyway)
>>> async def main():
...     incoming = open_memory_channel(15)
...     async with incoming:
...         await incoming[0].send(b'aaaa')
... 
>>> run(main)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/decentral1se/work/datpy/hypercore-protocol/.venv/lib/python3.8/site-packages/trio/_core/_run.py", line 1804, in run

decentral1se

"""Mux/demux protocol toy example with Trio.

Naively done and just about working! Probably buggy. There is not much by way
of error handling however it does showcase an approach for multiplexing a
streamed connection with multiple channels. All messages that are sent over the
stream are tagged with a channel ID. Each Protocol and Channel instance have
their own incoming and outgoing queue.

I'm trying to work towards having a robust mux/demux implementation and need
some help. Any comments on this would be greatly appreciated. Hopefully this

decentral1se

import pytest
import trio
from trio.testing import memory_stream_pair

from muxdemux import open_protocol


@pytest.fixture()
def stream():
    return memory_stream_pair()

decentral1se

"""Pelican plugin for interacting with Homebase."""

from collections import defaultdict
from datetime import datetime as dt
from operator import attrgetter

from pelican import signals
from pelican.contents import Article, Author, Category
from pelican.generators import ArticlesGenerator, Generator
from pelican.readers import BaseReader