Sithu Aung sithu

Previous versions used homebrew to install the various versions. As suggested in the comments, it's better to use pyenv instead. If you are looking for the previous version of this document, see the revision history.

$ brew update
$ brew install pyenv
$ pyenv install 3.5.0
$ pyenv install 3.4.3
$ pyenv install 3.3.6
$ pyenv install 3.2.6
$ pyenv install 2.7.10

$ pyenv install 2.6.9

	def on_model_change(self, form, model, is_created=False):
	if not is_created:
	return

	today = datetime.now().date()
	start = form.start_date.data
	end = form.end_date.data

	if start <= today:
	raise validators.ValidationError("'Start Date' must be a future date!")

	#! /usr/bin/env python
	# Of course, the author does not guarantee safety.
	# I did my best by using SQLite's online backup API.
	from __future__ import print_function
	import sys, ctypes
	from ctypes.util import find_library

	SQLITE_OK = 0
	SQLITE_ERROR = 1
	SQLITE_BUSY = 5

	cat /usr/share/grafana/grafana-backup.sh
	#!/bin/bash

	DB="/var/lib/grafana/grafana.db"
	BACKUP="/data/backup/grafana/grafana.db-$(date +%Y%m%d).bck"
	SQLITE=/usr/bin/sqlite3
	ZIP=/bin/gzip

	${SQLITE} ${DB} ".backup ${BACKUP}"
	${ZIP} ${BACKUP}

	HelloWorld.deployed().then(helloworld=> console.log(helloworld.balance.call()))

	// OR

	HelloWorld.deployed().then(function(instance){helloworld=instance})

	// THEN

	helloworld.balance.call()


	chain: ropsten

	# Use automated Chrome to verify all contracts on etherscan.io
	# You need to install Splinter package:
	# pip install splinter
	verify_on_etherscan: no
	browser_driver: chrome

	contracts:

	"""
	Question:
	Pick one IP from each region, find network latency from via the below code snippet
	(ping 3 times), and finally sort the average latency by region.
	http://ec2-reachability.amazonaws.com/

	Expected Output for all 15 regions:
	1. us-west-1 [50.18.56.1] - 100ms (Smallest average latency)
	2. xx-xxxx-x [xx.xx.xx.xx] - 200ms
	3. xx-xxxx-x [xx.xx.xx.xx] - 300ms