code: def set_close_on_exec(fd):
      '''set the clone on exec flag on a file descriptor. Ignore exceptions'''
      try:
          import fcntl
          flags = fcntl.fcntl(fd, fcntl.F_GETFD)
          flags |= fcntl.FD_CLOEXEC
          fcntl.fcntl(fd, fcntl.F_SETFD, flags)
      except Exception:
          pasf set_close_on_exec(fd):
      '''set the clone on exec flag on a file descriptor. Ignore exceptions'''
      try:
          import fcntl
          flags = fcntl.fcntl(fd, fcntl.F_GETFD)
          flags |= fcntl.FD_CLOEXEC
          fcntl.fcntl(fd, fcntl.F_SETFD, flags)
      except Exception:
          pass
docs: set the clone on exec flag on a file descriptor. Ignore exceptions