Adrian Rocamora adrianrocamora

Use another mirror when PyPI go down

Find a mirror geographically close to you and use it like this:

pip install -i https://[mirror-url]/simple package

For instance, using a Beijing mirror:

pip install -i https://pypi.douban.com/simple package

Installing Kubernetes on ArchLinux

Packages

pacman -S curl docker ebtables ethtool wget unzip

Also cfssl is needed but available on AUR, using pacaur

pacaur -S cfssl

Installing Kubernetes on ArchLinux

Packages

pacman -S curl docker ebtables ethtool wget unzip

Also cfssl is needed but available on AUR, using pacaur

pacaur -S cfssl

Arch Linux installation (Windows 10 dual boot)

Before

Disable Windows Fast-Startup
Disable Secure Boot

Partitioning

With this wiki2html.sh bash script and pandoc program, you can convert markdown to html.

Usage: In the vim list section of the .vimrcfile, include options:

let g:vimwiki_list = [{'path': ‘your_wiki_place',
  \ 'path_html': ‘wiki_html_location’,
  \ 'syntax': 'markdown',
 \ 'ext': '.md',

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.

	from pymongo import MongoClient
	from odo import odo
	import pandas as pd

	# open connection
	connection = MongoClient()

	# pandas df creation
	DF = pd.DataFrame({'A': [1,2,3,4,5,6,7], 'B':[10,20,30,40,50,60,70]})
	# database connection

	version: "3"
	services:

	postgres-db:
	image: postgres
	restart: always
	ports:
	- 5432:5432
	environment:
	POSTGRES_PASSWORD: postgres

	pkg upgrade
	pkg install python python-dev libzmq-dev libcrypt-dev clang
	pip3 install -U pip
	pip3 install pyzmq --install-option="--zmq=/usr/lib"
	pip3 install jupyter

	#TODO: Clean up ~200 mb pulled by build...
	apt remove python-dev libzmq-dev libcrypt-dev clang
	apt autoremove
	rm .cache ../usr/var/cache -rf

	10-Bit H.264

	For all those who haven’t heard of it already, here’s a quick rundown about the
	newest trend in making our encodes unplayable on even more systems: So-called
	high-bit-depth H.264. So, why another format, and what makes this stuff
	different from what you know already?

	First off: What is bit depth?
	In short, bit depth is the level of precision that’s available for storing color
	information. The encodes you’re used to have a precision of 8 bits (256 levels)