new_contents: from __future__ import print_function
  
  import os
  
  from fabric.api import local
  from fabric.colors import red
  
  
  def build():
      if cmd_exists('zip'):
          local('zip -r "dist/vivir.zip" . -x "*.git*"')
      else:
          print(red("Install zip!"), "apt install zip")
  
  
  def cmd_exists(x):
      return any(os.access(os.path.join(path, x), os.X_OK)
                 for path in os.environ["PATH"].split(os.pathsep))
  
subject: Add fabfile