MacOS Sierra Dev Setup

#!/Library/Frameworks/Python.framework/Versions/2.7/bin/python
# Frok from https://github.com/Aerolab/setup/blob/master/setup.py
# -*- coding: utf-8 -*-

import os
import json
import urllib2

name = ''
email = ''

# Basic Info
while name == '':
  name = raw_input("What's your name?\n").strip()

while email == '' or '@' not in email:
  email = raw_input("What's your email?\n").strip()
  
print "Hi %s!" % name
print "You'll be asked for your password at a few points in the process"
print "*************************************"
print "Setting up your Mac..."
print "*************************************"


# Create a Private Key
if not os.path.isfile(os.path.expanduser("~") + '/.ssh/id_rsa.pub'):
  print "Creating your Private Key"
  os.system('ssh-keygen -t rsa -b 4096 -f ~/.ssh/id_rsa -N "" -C "%s"' % email)

# Check if Xcode Command Line Tools are installed
if os.system('xcode-select -p') != 0:
  print "Installing XCode Tools"
  os.system('xcode-select --install')
  print "*************************************"
  print "Restart your Mac to continue"
  print "*************************************"
  exit()
  
# Install Brew & Brew Cask
print "Installing Brew & Brew Cask"
os.system('/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"')
os.system('brew tap caskroom/cask')
os.system('brew tap homebrew/services')
os.system('brew update && brew upgrade && brew cleanup && brew cask cleanup')
os.system('brew install git node python python3 ruby')
os.system('brew link --overwrite git node python python3 ruby')
os.system('brew install git-flow')

os.system('brew install graphicsmagick curl wget libpng libxml2 openssl')
os.system('npm install -g yo bower gulp-cli grunt-cli node-gyp nvm')

os.system('brew cask install iterm2 spectacle the-unarchiver')
os.system('brew cask install google-chrome firefox sourcetree sublime-text dropbox skype spotify slack vlc macdown')

os.system('brew cask install sequel-pro cyberduck docker ngrok')

# Finder: allow text selection in Quick Look
os.system('defaults write com.apple.finder QLEnableTextSelection -bool true')
# Check for software updates daily
os.system('defaults write com.apple.SoftwareUpdate ScheduleFrequency -int 1')
# Disable auto-correct
#os.system('defaults write NSGlobalDomain NSAutomaticSpellingCorrectionEnabled -bool false')
# Require password immediately after sleep or screen saver begins
os.system('defaults write com.apple.screensaver askForPassword -int 1')
os.system('defaults write com.apple.screensaver askForPasswordDelay -int 0')
# Show the ~/Library folder
os.system('chflags nohidden ~/Library')
# Don’t automatically rearrange Spaces based on most recent use
os.system('defaults write com.apple.dock mru-spaces -bool false')
# Prevent Time Machine from prompting to use new hard drives as backup volume
os.system('defaults write com.apple.TimeMachine DoNotOfferNewDisksForBackup -bool true')
# Mute startup sound
os.system('sudo nvram SystemAudioVolume=", "')