class_docstr: An object to manage the profile directory and its resources.
  
  The profile directory is used by all IPython applications, to manage
  configuration, logging and security.
  
  This object knows how to find, create and manage these directories. This
  should be used by any code that wants to handle profiles.
class_docstr_tok: ["An","object","to","manage","the","profile","directory","and","its","resources",".","The","profile","directory","is","used","by","all","IPython","applications",",","to","manage","configuration",",","logging","and","security",".","This","object","knows","how","to","find",",","create","and","manage","these","directories",".","This","should","be","used","by","any","code","that","wants","to","handle","profiles","."]
code: def check_startup_dir(self, change=None):
      self._mkdir(self.startup_dir)
  
      readme = os.path.join(self.startup_dir, "README")
  
      if not os.path.exists(readme):
          import pkgutil
  
          with open(readme, "wb") as f:
              f.write(
                  pkgutil.get_data(__name__, "profile/README_STARTUP")
              )
  
imports: import os
  import shutil
  import errno
  from traitlets.config.configurable import LoggingConfigurable
  from IPython.paths import get_ipython_package_dir
  from IPython.utils.path import expand_path, ensure_dir_exists
  from IPython.utils import py3compat
  from traitlets import Unicode, Bool, observe
label_desc: Use image node_id 4 for calling the ProfileDir obj's underlying member method code with example usage: obj.check_startup_dir(change) without return types