stesee

#http://askubuntu.com/questions/221026/how-can-i-batch-extract-audio-from-mp4-files-with-ffmpeg-without-decompression#221069
mkdir -p output
# current directory has to contain at least one .mp4 file 
for vid in *.mp4; do
   codec="$(ffprobe -v error -select_streams a:0 -show_entries stream=codec_name -print_format csv=p=0 "$vid")"
   case "$codec" in
    mp3    ) filetype=mp3 ;;
    vorbis ) filetype=ogg ;;
    aac    ) filetype=m4a ;;
    *      ) filetype= ;;

jedi4ever

Building chromium on OSX

See https://chromium.googlesource.com/chromium/src/+/master/docs/mac_build_instructions.md

git clone depot_tools

add to path (not using ~ but $HOME) in .bash_profile

Increase vnodes

sudo sysctl kern.maxvnodes=$((512*1024))

zduey

import io
import requests
import pandas as pd
from bokeh.models import ColumnDataSource, HoverTool, ResizeTool, SaveTool
from bokeh.models.widgets import TextInput, Button
from bokeh.plotting import figure, curdoc
from bokeh.layouts import row, widgetbox


TICKER = ""

alexhayes

Awesomely easy virtualenvs on OSX using pyenv and direnv

Never forget to activate that virtualenv or set that environment variable ever again...

Install

1. Install pyenv

    brew install pyenv
   

mGalarnyk

# To incorporate and learn from later: http://stackoverflow.com/questions/494594/how-to-write-the-fibonacci-sequence-in-python
##########################################
# Method 1: Simple For Loops
# If you like, you can specify which Python version you are using

# Python 2 Version
# (xrange doesnt exist in Python3)
a, b = 0, 1
for i in xrange(0, 10):

gwillem

# Add this snippet to the top of your playbook. 
# It will install python2 if missing (but checks first so no expensive repeated apt updates)
# gwillem@gmail.com

- hosts: all
  gather_facts: False
  
  tasks:
  - name: install python 2
    raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal)

lornajane

Keyboard-only Mac Cheatsheet

Hi, I'm Lorna and I don't use a mouse. I have had RSI issues since a bad workstation setup at work in 2006. I've tried a number of extra hardware modifications but what works best for me is to use the keyboard and only the keyboard, so I'm in a good position and never reaching for anything else (except my coffee cup!). I rather unwisely took a job which required me to use a mac (I've been a linux user until now and also had the ability to choose my tools carefully) so here is my cheatsheet of the apps, tricks and keyboard shortcuts I'm using, mostly for my own reference. Since keyboard-only use is also great for productivity, you may also find some of these ideas useful, in which case at least something good has come of this :)

Apps List

There's more detail on a few of these apps but here is a quick overview of the tools I've installed and found helpful

Tool	Link	Comments

bbengfort

# Shell to use with Make
SHELL := /bin/bash

# Set important Paths
PROJECT := # Set to your project name
LOCALPATH := $(CURDIR)/$(PROJECT)
PYTHONPATH := $(LOCALPATH)/
PYTHON_BIN := $(VIRTUAL_ENV)/bin

# Export targets not associated with files

pmbaumgartner

from sklearn.metrics import f1_score, make_scorer
scorer = make_scorer(f1_score, labels=[-1, 1], average='macro')

# use like:
cv = cross_val_score(model, X, Y, scoring=scorer)

vigosan

#!/usr/bin/env bash
# Build and install neovim for Debian

pushd .

mkdir -p ~/src
cd ~/src

# Install cmake 2.8.10
cmake_package="cmake-3.3.1"