docs: def t(inspect_packages=False, depth=0, **kwargs):
      '''
      print a backtrace
  
      since -- 7-6-12
  
      inpsect_packages -- boolean -- by default, this only prints code of packages that are not 
          in the pythonN directories, that cuts out a lot of the noise, set this to True if you
          want a full stacktrace
      depth -- integer -- how deep you want the stack trace to print (ie, if you only care about
          the last three calls, pass in depth=3 so you only get the last 3 rows of the stack)
      '''
  
  
      #frame = inspect.currentframe()
  
      try:
          frames = inspect.stack()
          kwargs["frames"] = frames
          kwargs["inspect_packages"] = inspect_packages
          kwargs["depth"] = depth
  
          with Reflect.context(**kwargs) as r:
              instance = T_CLASS(r, stream, **kwargs)
              instance()
  
      finally:
          del frames