def _make_args(cmd, opts, os_opts, separator=u'-', flags=None, cmd_args=None):
 args = [u'']
 flags = (flags or [])
 for (k, v) in opts.items():
  args.append((u'--' + k.replace(u'_', u'-')))
  if (v is not None):
   args.append(v)
 for (k, v) in os_opts.items():
  args.append(((u'--os' + separator) + k.replace(u'_', separator)))
  if (v is not None):
   args.append(v)
 for flag in flags:
  args.append((u'--%s' % flag))
 if cmd:
  args.append(cmd)
 if cmd_args:
  args.extend(cmd_args)
 return args

def _make_args ( cmd , opts , os_opts , separator = u'-' , flags = None , cmd_args = None ) : args = [ u'' ] flags = ( flags or [ ] ) for ( k , v ) in opts . items ( ) : args . append ( ( u'--' + k . replace ( u'_' , u'-' ) ) ) if ( v is not None ) : args . append ( v ) for ( k , v ) in os_opts . items ( ) : args . append ( ( ( u'--os' + separator ) + k . replace ( u'_' , separator ) ) ) if ( v is not None ) : args . append ( v ) for flag in flags : args . append ( ( u'--%s' % flag ) ) if cmd : args . append ( cmd ) if cmd_args : args . extend ( cmd_args ) return args
construct command line arguments for given options .