code: def limit_mem(limit=(4 * 1024**3)):
      "Set soft memory limit"
      rsrc = resource.RLIMIT_DATA
      soft, hard = resource.getrlimit(rsrc)
      resource.setrlimit(rsrc, (limit, hard))  # 4GB
      softnew, _ = resource.getrlimit(rsrc)
      assert softnew == limit
  
      _log = logging.getLogger(__name__)
      _log.debug('Set soft memory limit: %s => %s', soft, softnewf limit_mem(limit=(4 * 1024**3)):
      "Set soft memory limit"
      rsrc = resource.RLIMIT_DATA
      soft, hard = resource.getrlimit(rsrc)
      resource.setrlimit(rsrc, (limit, hard))  # 4GB
      softnew, _ = resource.getrlimit(rsrc)
      assert softnew == limit
  
      _log = logging.getLogger(__name__)
      _log.debug('Set soft memory limit: %s => %s', soft, softnew)
docs: Set soft memory limit