code: def traverse_dict(data, key, default=None, delimiter=DEFAULT_TARGET_DELIM):
      '''
      Traverse a dict using a colon-delimited (or otherwise delimited, using the
      'delimiter' param) target string. The target 'foo:bar:baz' will return
      data['foo']['bar']['baz'] if this value exists, and will otherwise return
      the dict in the default argument.
      '''
      ptr = data
      try:
          for each in key.split(delimiter):
              ptr = ptr[each]
      except (KeyError, IndexError, TypeError):
          # Encountered a non-indexable value in the middle of traversing
          return default
      return ptf traverse_dict(data, key, default=None, delimiter=DEFAULT_TARGET_DELIM):
      '''
      Traverse a dict using a colon-delimited (or otherwise delimited, using the
      'delimiter' param) target string. The target 'foo:bar:baz' will return
      data['foo']['bar']['baz'] if this value exists, and will otherwise return
      the dict in the default argument.
      '''
      ptr = data
      try:
          for each in key.split(delimiter):
              ptr = ptr[each]
      except (KeyError, IndexError, TypeError):
          # Encountered a non-indexable value in the middle of traversing
          return default
      return ptr
docs: Traverse a dict using a colon-delimited (or otherwise delimited, using the
      'delimiter' param) target string. The target 'foo:bar:baz' will return
      data['foo']['bar']['baz'] if this value exists, and will otherwise return
      the dict in the default argument.