class_docstr: Base class for Jupyter applications
code: def initialize(self, argv=None):
      # don't hook up crash handler before parsing command-line
      if argv is None:
          argv = sys.argv[1:]
      if argv:
          subc = self._find_subcommand(argv[0])
          if subc:
              self.argv = argv
              self.subcommand = subc
              return
      self.parse_command_line(argv)
      cl_config = deepcopy(self.config)
      if self._dispatching:
          return
      self.migrate_config()
      self.load_config_file()
      # enforce cl-opts override configfile opts:
      self.update_config(cl_config)
      if allow_insecure_writes:
          issue_insecure_write_warning()
  
imports: from __future__ import print_function
  from copy import deepcopy
  import logging
  import os
  import sys
  from traitlets.config.application import Application, catch_config_error
  from traitlets.config.loader import ConfigFileNotFound
  from traitlets import Unicode, Bool, List, observe
  from .utils import ensure_dir_exists
  from ipython_genutils import py3compat
  from .paths import jupyter_config_dir, jupyter_data_dir, jupyter_runtime_dir, jupyter_path, jupyter_config_path, allow_insecure_writes, issue_insecure_write_warning
label_desc: Use image node_id 14 for calling the JupyterApp obj's underlying member method code with example usage: obj.initialize(argv) without return types