text: #!/usr/bin/env python3
  '''
  Created on Jan 2, 2018
  
  @author: arnon
  '''
  
  from subprocess import run, PIPE
  from acrilib.setup.install_required import install_required, format_file_required, format_setup_required
  
  
  def cmdargs():
      import argparse
  
      parser = argparse.ArgumentParser(
          description='''produce required packages to add into setup.py.
  
  Example:
      install_required
      ''')
  
      parser.add_argument('--exact', action='store_true', dest='exact', default=False,
                          help='set relationships as ==, otherwise >= will be used.')
      parser.add_argument('--embed', action='store_true', dest='embed', default=False,
                          help='format for embedding directly into setup.py.')
      parser.add_argument('--output', type=str, dest='output', required=False, default='REQUIRED',
                          help='override the default "REQUIRED" file.')
      args = parser.parse_args()
      return args
  
  
  def main(args):
      required = install_required(args.exact)
      if not args.embed:
          msg = format_file_required(required, file=args.output)
      else:
          msg = format_setup_required(required)
          print(msg)
  
  
  if __name__ == '__main__':
      args = cmdargs()
      main(args)
  
      