code: def verify_weave_options(opt, parser):
      
  
      # PYTHONCOMPILED is initially set in pycbc.__init__
      cache_dir = os.environ['PYTHONCOMPILED']
  
      # Check whether to use a fixed directory for weave
      if opt.fixed_weave_cache:
          if os.environ.get("FIXED_WEAVE_CACHE", None):
              cache_dir = os.environ["FIXED_WEAVE_CACHE"]
          elif getattr(sys, 'frozen', False):
              cache_dir = sys._MEIPASS
          else:
              cache_dir = os.path.join(os.getcwd(),"pycbc_inspiral")
          os.environ['PYTHONCOMPILED'] = cache_dir
          logging.debug("fixed_weave_cache: Setting weave cache to %s", cache_dir)
          sys.path = [cache_dir] + sys.path
          try: os.makedirs(cache_dir)
          except OSError: pass
          if not os.environ.get("LAL_DATA_PATH", None):
              os.environ['LAL_DATA_PATH'] = cache_dir
  
      # Check whether to use a private directory for weave
      if opt.per_process_weave_cache:
          cache_dir = os.path.join(cache_dir, str(os.getpid()))
          os.environ['PYTHONCOMPILED'] = cache_dir
          logging.info("Setting weave cache to %s", cache_dir)
  
      if not os.path.exists(cache_dir):
          try:
              os.makedirs(cache_dir)
          except:
              logging.error("Unable to create weave cache %s", cache_dir)
              sys.exit(1)
  
      if opt.clear_weave_cache_at_start:
          _clear_weave_cache()
          os.makedirs(cache_dir)
  
      if opt.clear_weave_cache_at_end:
          atexit.register(_clear_weave_cache)
          signal.signal(signal.SIGTERM, _clear_weave_cache)
docs: Parses the CLI options, verifies that they are consistent and
      reasonable, and acts on them if they are
  
      Parameters
      ----------
      opt : object
          Result of parsing the CLI with OptionParser, or any object with the
          required attributes
      parser : object
          OptionParser instance.