code: def is_in_virtualenv():
      
  
      pipenv_active = os.environ.get("PIPENV_ACTIVE", False)
      virtual_env = None
      use_system = False
      ignore_virtualenvs = bool(os.environ.get("PIPENV_IGNORE_VIRTUALENVS", False))
  
      if not pipenv_active and not ignore_virtualenvs:
          virtual_env = os.environ.get("VIRTUAL_ENV")
          use_system = bool(virtual_env)
      return (use_system or virtual_env) and not (pipenv_active or ignore_virtualenvs)
docs: Check virtualenv membership dynamically
  
      :return: True or false depending on whether we are in a regular virtualenv or not
      :rtype: bool