docstr: Load the config file.
  
  By default, errors in loading config are handled, and a warning
  printed on screen. For testing, the suppress_errors option is set
  to False, so errors will make tests fail.
  
  `suppress_errors` default value is to be `None` in which case the
  behavior default to the one of `traitlets.Application`.
  
  The default value can be set :
     - to `False` by setting 'IPYTHON_SUPPRESS_CONFIG_ERRORS' environment variable to '0', or 'false' (case insensitive).
     - to `True` by setting 'IPYTHON_SUPPRESS_CONFIG_ERRORS' environment variable to '1' or 'true' (case insensitive).
     - to `None` by setting 'IPYTHON_SUPPRESS_CONFIG_ERRORS' environment variable to '' (empty string) or leaving it unset.
  
  Any other value are invalid, and will make IPython exit with a non-zero return code.
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code: def load_config_file(
      self, suppress_errors=IPYTHON_SUPPRESS_CONFIG_ERRORS
  ):
      """Load the config file.
  
      By default, errors in loading config are handled, and a warning
      printed on screen. For testing, the suppress_errors option is set
      to False, so errors will make tests fail.
  
      `suppress_errors` default value is to be `None` in which case the
      behavior default to the one of `traitlets.Application`.
  
      The default value can be set :
         - to `False` by setting 'IPYTHON_SUPPRESS_CONFIG_ERRORS' environment variable to '0', or 'false' (case insensitive).
         - to `True` by setting 'IPYTHON_SUPPRESS_CONFIG_ERRORS' environment variable to '1' or 'true' (case insensitive).
         - to `None` by setting 'IPYTHON_SUPPRESS_CONFIG_ERRORS' environment variable to '' (empty string) or leaving it unset.
  
      Any other value are invalid, and will make IPython exit with a non-zero return code.
      """
  
      self.log.debug(
          "Searching path %s for config files", self.config_file_paths
      )
      base_config = "ipython_config.py"
      self.log.debug("Attempting to load config file: %s" % base_config)
      try:
          if suppress_errors is not None:
              old_value = Application.raise_config_file_errors
              Application.raise_config_file_errors = not suppress_errors
          Application.load_config_file(
              self, base_config, path=self.config_file_paths
          )
      except ConfigFileNotFound:
          # ignore errors loading parent
          self.log.debug("Config file %s not found", base_config)
          pass
      if suppress_errors is not None:
          Application.raise_config_file_errors = old_value
  
      for config_file_name in self.config_files:
          if not config_file_name or config_file_name == base_config:
              continue
          self.log.debug(
              "Attempting to load config file: %s"
              % self.config_file_name
          )
          try:
              Application.load_config_file(
                  self, config_file_name, path=self.config_file_paths
              )
          except ConfigFileNotFound:
              # Only warn if the default config file was NOT being used.
              if config_file_name in self.config_file_specified:
                  msg = self.log.warning
              else:
                  msg = self.log.debug
              msg(
                  "Config file not found, skipping: %s",
                  config_file_name,
              )
          except Exception:
              # For testing purposes.
              if not suppress_errors:
                  raise
              self.log.warning(
                  "Error loading config file: %s"
                  % self.config_file_name,
                  exc_info=True,
              )
  
imports: import atexit
  from copy import deepcopy
  import logging
  import os
  import shutil
  import sys
  from pathlib import Path
  from traitlets.config.application import Application, catch_config_error
  from traitlets.config.loader import ConfigFileNotFound, PyFileConfigLoader
  from IPython.core import release, crashhandler
  from IPython.core.profiledir import ProfileDir, ProfileDirError
  from IPython.paths import get_ipython_dir, get_ipython_package_dir
  from IPython.utils.path import ensure_dir_exists
  from traitlets import List, Unicode, Type, Bool, Set, Instance, Undefined, default, observe
label_desc: Use image node_id 13 for calling the BaseIPythonApplication obj's underlying member method code with example usage: obj.load_config_file(suppress_errors) without return types