mrocklin

stonehippo

Getting a USB device to show up in a Docker container on OS X

Some background

I was trying to get the Arduino IDE to work inside a Docker container on OS X. I was able to get the IDE working (see Getting X11 GUI applications to work on OS X with Docker), but I could not figure out how to make the USB port for the Arduino visible.

The solution

I first tried to directly map hardware serial port into the Docker container, doing something like this:

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Luthaf

using PyCall

# Change that to whatever packages you need.
const PACKAGES = ["pyyaml"]

# Import pip
try
    @pyimport pip
catch
    # If it is not found, install it

dennisobrien

import bokeh.embed
import bokeh.io
import bokeh.models
import bokeh.models.widgets
import bokeh.plotting
import pandas as pd
from pandas_datareader import wb

bokeh.plotting.output_notebook()

artizirk

Arch Linux btrfs install

0. Prerequisites

1. Latest Arch Linux install iso because those have newer kernels and more bugfixes in btrfs.
2. Have previous experience with installing Arch (like you can install arch with a blind fold).

1. Parititions

We will ne two of them, one for /boot and the other one will be a btrfs partition with subvolumes.

1. /dev/sda1 - this will be /boot with vfat filesystem because UEFI or syslinux for legacy BIOS boot

evertrol

"""Example to cancel a set of asyncio coroutines (futures),
using one coroutine to signal the event loop to stop.
"""

import asyncio
import logging
from datetime import datetime
from concurrent.futures import CancelledError

garaud

# -*- coding: utf-8 -*-

"""From a Query.all(), turn this result to a pandas DataFrame

Table creation and example data come from the official SQLAlchemy ORM
tutorial at http://docs.sqlalchemy.org/en/latest/orm/tutorial.html

Just take a look at the 'query_to_dict' function and the last part of the __main__.
"""

satreix

Custom Arch Linux live USB

Setup

Install the dependencies for the archiso package:

(root): pacman -S make squashfs-tools libisoburn dosfstools patch lynx devtools git

I recommend archiso getting them from git, there is a package in the repositories, however, at this time of writing, it will not work with the instructions below. So, grab the most recent version from git and install it:

(user): git clone git://projects.archlinux.org/archiso.git && cd archiso

pwalsh

{% macro render_field(field) -%}

{% set with_label = kwargs.pop('with_label', False) %}
{% set placeholder = kwargs.pop('placeholder', field.label.text) %}
{% set class_ = kwargs.pop('class_', '') %}

{% if field.flags.required %}
{% set class_ = class_ + ' required' %}
{% endif %}