JP White jpwhite3

This notes is written by Sheldon. You can find me with #iOSBySheldon in Github, Youtube, Facebook, etc.

Need

Convert .mov/.MP4 to .gif

Reason

As a developer, I feel better to upload a short video when I create the pull request to show other viewers what I did in this PR. I tried .mov format directly got after finishing recording screen using Quicktime, however, gif offers preview in most web pages, and has smaller file size.

This is not limited to developer, anyone has this need can use this method to convert the files.

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Python development using Pants

brian wickman - @wickman

[TOC]

Why use Pants for Python development?

Pants makes the manipulation and distribution of hermetically sealed Python environments

	import unittest
	import random
	from typing import List


	class D20:
	minimum_value: int = 1
	maximum_value: int = 20
	number_range: List[int] = range(minimum_value, maximum_value + 1)

	# Install Time Machine service on CentOS 7
	# http://netatalk.sourceforge.net/wiki/index.php/Netatalk_3.1.7_SRPM_for_Fedora_and_CentOS
	# http://confoundedtech.blogspot.com/2011/07/draft-draft-ubuntu-as-apple-time.html
	yum install -y rpm-build gcc make wget

	# install netatalk
	yum install -y avahi-devel cracklib-devel dbus-devel dbus-glib-devel libacl-devel libattr-devel libdb-devel libevent-devel libgcrypt-devel krb5-devel mysql-devel openldap-devel openssl-devel pam-devel quota-devel systemtap-sdt-devel tcp_wrappers-devel libtdb-devel tracker-devel

	yum install -y bison docbook-style-xsl flex dconf

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import BaseHTTPServer, SimpleHTTPServer
	import ssl

	class FilterMixin(object):
	"""
	View mixin which provides filtering for ListView.
	"""
	filter_url_kwarg = 'filter'
	default_filter_param = None

	def get_default_filter_param(self):
	if self.default_filter_param is None:
	raise ImproperlyConfigured(

	"""Add user created_by and modified_by foreign key refs to any model automatically.
	Almost entirely taken from https://github.com/Atomidata/django-audit-log/blob/master/audit_log/middleware.py"""
	from django.db.models import signals
	from django.utils.functional import curry

	class WhodidMiddleware(object):
	def process_request(self, request):
	if not request.method in ('GET', 'HEAD', 'OPTIONS', 'TRACE'):
	if hasattr(request, 'user') and request.user.is_authenticated():
	user = request.user