How to use the spyder.py3compat.is_text_string function in spyder

def set(self, section, option, value, verbose=False, save=True):
        """
        Set an `option` on a given `section`.

        If section is None, the `option` is added to the default section.
        """
        section = self._check_section_option(section, option)
        default_value = self.get_default(section, option)

        if default_value is NoDefault:
            # This let us save correctly string value options with
            # no config default that contain non-ascii chars in
            # Python 2
            if PY2 and is_text_string(value):
                value = repr(value)

            default_value = value
            self.set_default(section, option, default_value)

        if isinstance(default_value, bool):
            value = bool(value)
        elif isinstance(default_value, float):
            value = float(value)
        elif isinstance(default_value, int):
            value = int(value)
        elif not is_text_string(default_value):
            value = repr(value)

        self._set(section, option, value, verbose)
        if save:

"""
        Start new console

        fname:
          string: filename of script to run
          None: open an interpreter
        wdir: working directory
        args: command line options of the Python script
        interact: inspect script interactively after its execution
        debug: run pdb
        python: True: Python interpreter, False: terminal
        python_args: additionnal Python interpreter command line options
                   (option "-u" is mandatory, see widgets.externalshell package)
        """
        # Note: fname is None <=> Python interpreter
        if fname is not None and not is_text_string(fname):
            fname = to_text_string(fname)
        if wdir is not None and not is_text_string(wdir):
            wdir = to_text_string(wdir)
        
        if fname is not None and fname in self.filenames:
            index = self.filenames.index(fname)
            if self.get_option('single_tab'):
                old_shell = self.shellwidgets[index]
                if old_shell.is_running():
                    runconfig = get_run_configuration(fname)
                    if runconfig is None or runconfig.show_kill_warning:
                        if PYQT5:
                            answer = QMessageBox.question(self, self.get_plugin_title(),
                                _("%s is already running in a separate process.\n"
                                  "Do you want to kill the process before starting "
                                  "a new one?") % osp.basename(fname),

def _eval(self, text):
        """
        Evaluate text and return (obj, valid)
        where *obj* is the object represented by *text*
        and *valid* is True if object evaluation did not raise any exception
        """
        assert is_text_string(text)
        ns = self.get_current_namespace()
        try:
            return eval(text, ns), True
        except:
            return None, False

def create_action(parent, text, shortcut=None, icon=None, tip=None,
                  toggled=None, triggered=None, data=None, menurole=None,
                  context=Qt.WindowShortcut):
    """Create a QAction"""
    action = SpyderAction(text, parent)
    if triggered is not None:
        action.triggered.connect(triggered)
    if toggled is not None:
        action.toggled.connect(toggled)
        action.setCheckable(True)
    if icon is not None:
        if is_text_string(icon):
            icon = get_icon(icon)
        action.setIcon(icon)
    if tip is not None:
        action.setToolTip(tip)
        action.setStatusTip(tip)
    if data is not None:
        action.setData(to_qvariant(data))
    if menurole is not None:
        action.setMenuRole(menurole)

    # Workround for Mac because setting context=Qt.WidgetShortcut
    # there doesn't have any effect
    if sys.platform == 'darwin':
        action._shown_shortcut = None
        if context == Qt.WidgetShortcut:
            if shortcut is not None:

def _check_defaults(self, defaults):
        """Check if defaults are valid and update defaults values."""
        if defaults is None:
            defaults = [(self.DEFAULT_SECTION_NAME, {})]
        elif isinstance(defaults, dict):
            defaults = [(self.DEFAULT_SECTION_NAME, defaults)]
        elif isinstance(defaults, list):
            # Check is a list of tuples with strings and dictionaries
            for sec, options in defaults:
                assert is_text_string(sec)
                assert isinstance(options, dict)
                for opt, _ in options.items():
                    assert is_text_string(opt)
        else:
            raise ValueError('`defaults` must be a dict or a list of tuples!')

        # This attribute is overriding a method from cp.ConfigParser
        self.defaults = defaults

        if defaults is not None:
            self.reset_to_defaults(save=False)

        return defaults

def _set(self, section, option, value, verbose):
        """Set method."""
        if not self.has_section(section):
            self.add_section(section)

        if not is_text_string(value):
            value = repr(value)

        if verbose:
            text = '[{}][{}] = {}'.format(section, option, value)
            print(text)  # spyder: test-skip

        super(DefaultsConfig, self).set(section, option, value)

default_value = self.get_default(section, option)
        if default_value is NoDefault:
            # This let us save correctly string value options with
            # no config default that contain non-ascii chars in
            # Python 2
            if PY2 and is_text_string(value):
                value = repr(value)
            default_value = value
            self.set_default(section, option, default_value)
        if isinstance(default_value, bool):
            value = bool(value)
        elif isinstance(default_value, float):
            value = float(value)
        elif isinstance(default_value, int):
            value = int(value)
        elif not is_text_string(default_value):
            value = repr(value)
        self._set(section, option, value, verbose)
        if save:
            self._save()

def _eval(self, text):
        """
        Evaluate text and return (obj, valid)
        where *obj* is the object represented by *text*
        and *valid* is True if object evaluation did not raise any exception
        """
        if not IS_EXT_INTERPRETER:
            from spyder.py3compat import is_text_string
        else:
            from py3compat import is_text_string

        assert is_text_string(text)
        ns = self._get_current_namespace(with_magics=True)
        try:
            return eval(text, ns), True
        except:
            return None, False

def getobjdir(obj):
    """
    For standard objects, will simply return dir(obj)
    In special cases (e.g. WrapITK package), will return only string elements
    of result returned by dir(obj)
    """
    return [item for item in dir(obj) if is_text_string(item)]

def text_to_qcolor(text):
    """
    Create a QColor from specified string
    Avoid warning from Qt when an invalid QColor is instantiated
    """
    color = QColor()
    if not is_string(text): # testing for QString (PyQt API#1)
        text = str(text)
    if not is_text_string(text):
        return color
    if text.startswith('#') and len(text)==7:
        correct = '#0123456789abcdef'
        for char in text:
            if char.lower() not in correct:
                return color
    elif text not in list(QColor.colorNames()):
        return color
    color.setNamedColor(text)
    return color