1  """Simple script to be run *twice*, to check reference counting bugs.
   2  
   3  See test_run for details."""
   4  
   5  
   6  import sys
   7  
   8  # We want to ensure that while objects remain available for immediate access,
   9  # objects from *previous* runs of the same script get collected, to avoid
  10  # accumulating massive amounts of old references.
  11  class C(object):
  12      def __init__(self,name):
  13          self.name = name
  14          self.p = print
  15          self.flush_stdout = sys.stdout.flush
  16          
  17      def __del__(self):
  18          self.p('tclass.py: deleting object:',self.name)
  19          self.flush_stdout()
  20  
  21  try:
  22      name = sys.argv[1]
  23  except IndexError:
  24      pass
  25  else:
  26      if name.startswith('C'):
  27          c = C(name)
  28  
  29  # print("ARGV:", sys.argv, file=sys.stderr)  # dbg
  30  
  31  # This next print statement is NOT debugging, we're making the check on a
  32  # completely separate process so we verify by capturing stdout:
  33  print('ARGV 1-:', sys.argv[1:])
  34  sys.stdout.flush()
  35