How to use the psychopy.localization._translate function in psychopy

# file
                nUpdates, newInfo = self.updatePthFile(pathVersion,
                                                       "PsychoPy-%s" % v)
                if nUpdates == -1:  # there was an error (likely permissions)
                    undoStr += 'self.updatePthFile(unzipTarget, currPath)\n'
                    exec(undoStr)  # undo previous changes
                    return newInfo

        try:
            # create the new installation dir AFTER renaming existing dir
            os.makedirs(unzipTarget)
            undoStr += 'os.remove(%s)\n' % unzipTarget
        except Exception:  # revert path rename and inform user
            exec(undoStr)  # undo previous changes
            if onWin32:
                msg = _translate(
                    "Right-click the app and 'Run as admin'):\n%s")
            else:
                msg = _translate("Failed to create directory for new version"
                                 " (permissions error?):\n%s")
            return msg % unzipTarget

        # do the actual extraction
        for name in zfile.namelist():  # for each file within the zip
            # check that this file is part of psychopy (not metadata or docs)
            if name.count('/psychopy/') < 1:
                continue
            try:
                targetFile = os.path.join(unzipTarget,
                                          name.split('/psychopy/')[1])
                targetContainer = os.path.split(targetFile)[0]
                if not os.path.isdir(targetContainer):

"""Defines Save File as Behavior
        """
        shortFilename = self.getShortFilename()
        expName = self.exp.getExpName()
        if (not expName) or (shortFilename == expName):
            usingDefaultName = True
        else:
            usingDefaultName = False
        if filename is None:
            filename = self.filename
        initPath, filename = os.path.split(filename)

        _w = "PsychoPy experiments (*.psyexp)|*.psyexp|Any file (*.*)|*"
        if sys.platform != 'darwin':
            _w += '.*'
        wildcard = _translate(_w)
        returnVal = False
        dlg = wx.FileDialog(
            self, message=_translate("Save file as ..."), defaultDir=initPath,
            defaultFile=filename, style=wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT,
            wildcard=wildcard)

        if dlg.ShowModal() == wx.ID_OK:
            newPath = dlg.GetPath()
            # update exp name
            # if user has not manually renamed experiment
            if usingDefaultName:
                newShortName = os.path.splitext(
                    os.path.split(newPath)[1])[0]
                self.exp.setExpName(newShortName)
            # actually save
            self.fileSave(event=None, filename=newPath)

if newName == '':
            msg = _translate("Missing name")
            OK = False
        else:
            namespace = parent.frame.exp.namespace
            used = namespace.exists(newName)
            sameAsOldName = bool(newName == parent.params['name'].val)
            if used and not sameAsOldName:
                msg = _translate("That name is in use (by %s). Try another name.") % used
                OK = False
            elif not namespace.isValid(newName):  # valid as a var name
                msg = _translate("Name must be alpha-numeric or _, no spaces")
                OK = False
            # warn but allow, chances are good that its actually ok
            elif namespace.isPossiblyDerivable(newName):
                msg = _translate(namespace.isPossiblyDerivable(newName))
                OK = True
        parent.warningsDict['name'] = msg
        return msg, OK

msg = _translate('%(photomType)s found on %(photomPort)s')
            self.comPortLabel.SetLabel(msg %
                                       {'photomType': self.photom.type,
                                        'photomPort': self.photom.portString})
        else:
            self.comPortLabel.SetLabel(_translate('No photometers found'))
            self.photom = None

        # does this device need a dark calibration?
        if (hasattr(self.photom, 'getNeedsCalibrateZero') and
                self.photom.getNeedsCalibrateZero()):
            # prompt user if we need a dark calibration for the device
            if self.photom.getNeedsCalibrateZero():
                wx.Dialog(self, title=_translate(
                    'Dark calibration of ColorCAL'))
                msg = _translate('Your ColorCAL needs to be calibrated first.'
                                 ' Please block all light from getting into '
                                 'the lens and press OK.')
                while self.photom.getNeedsCalibrateZero():
                    txt = _translate('Dark calibration of ColorCAL')
                    dlg = dialogs.MessageDialog(self, message=msg,
                                                title=txt,
                                                type='Info')
                    # info dlg has only an OK button
                    resp = dlg.ShowModal()
                    if resp == wx.ID_CANCEL:
                        self.photom = None
                        self.comPortLabel.SetLabel('')
                        return 0
                    elif resp == wx.ID_OK:
                        self.photom.calibrateZero()
                    # this failed at least once. Try again.

_translate("save a Builder or Coder file")

# baseNoArch.spec,[connections],line129
_translate("save a Builder or Coder file under a new name")

# baseNoArch.spec,[connections],line131
_translate("Coder: print the file")

# baseNoArch.spec,[connections],line134
_translate("close the Builder or Coder window")

# baseNoArch.spec,[keyBindings],line136
_translate("end the application (PsychoPy)")

# baseNoArch.spec,[keyBindings],line138
_translate("open the preferences dialog")

# baseNoArch.spec,[keyBindings],line140
_translate("export Builder experiment to HTML")

# baseNoArch.spec,[keyBindings],line142
_translate("Coder: cut")

# baseNoArch.spec,[keyBindings],line144
_translate("Coder: copy")

# baseNoArch.spec,[keyBindings],line146
_translate("Coder: paste")

# baseNoArch.spec,[keyBindings],line148
_translate("Coder: duplicate")

def __init__(self, firstrun=False, interactive=True, log=True):
        """Check drivers, show GUIs, run diagnostics, show report.
        """
        super(ConfigWizard, self).__init__()
        self.firstrun = firstrun
        self.prefs = prefs
        self.appName = 'PsychoPy3'
        self.name = self.appName + _translate(' Configuration Wizard')
        self.reportPath = os.path.join(
            self.prefs.paths['userPrefsDir'], 'firstrunReport.html')
        # self.iconfile = os.path.join(self.prefs.paths['resources'],
        #       'psychopy.png')
        # dlg.SetIcon(wx.Icon(self.iconfile, wx.BITMAP_TYPE_PNG)) # no error
        # but no effect

        dlg = gui.Dlg(title=self.name)
        dlg.addText('')
        if firstrun:
            dlg.addText(_translate("Welcome to PsychoPy3!"), color='blue')
            dlg.addText('')
            dlg.addText(_translate("It looks like you are running PsychoPy "
                                   "for the first time."))
            dlg.addText(_translate("This wizard will help you get started "
                                   "quickly and smoothly."))

proportion=1, flag=wx.EXPAND | wx.ALL, border=5)
        categNames = sorted(categs)
        if 'Basic' in categNames:
            # move it to be the first category we see
            categNames.insert(0, categNames.pop(categNames.index('Basic')))
        # move into _localized after merge branches:
        categLabel = {'Basic': _translate('Basic'),
                      'Data': _translate('Data'),
                      'Screen': _translate('Screen'),
                      'Dots': _translate('Dots'),
                      'Grating': _translate('Grating'),
                      'Advanced': _translate('Advanced'),
                      'Custom': _translate('Custom'),
                      'Carrier': _translate('Carrier'),
                      'Envelope': _translate('Envelope'),
                      'Appearance': _translate('Appearance'),
                      'Save': _translate('Save'),
                      'Online':_translate('Online')}
        for categName in categNames:
            theseParams = categs[categName]
            page = wx.Panel(self.ctrls, -1)
            ctrls = self.addCategoryOfParams(theseParams, parent=page)
            if categName in categLabel:
                cat = categLabel[categName]
            else:
                cat = categName
            self.ctrls.AddPage(page, cat)
            # so the validator finds this set of controls
            self.panels.append(page)
            if 'customize_everything' in self.params:
                if self.params['customize_everything'].val.strip():
                    # set focus to the custom panel

'func': self.onClose},
            {'id': wx.ID_EXIT, 'label': _translate("&Quit\t%s") % keys['quit'],
             'status': _translate('Quitting PsychoPy'),
             'func': self.onQuit},
        ]

        viewMenuItems = [
            {'id': wx.ID_ANY, 'label': _translate("Open &Builder view"),
             'status': _translate("Opening Builder"), 'func': self.viewBuilder},
            {'id': wx.ID_ANY, 'label': _translate("Open &Coder view"),
             'status': _translate('Opening Coder'), 'func': self.viewCoder},
        ]

        runMenuItems = [
            {'id': wx.ID_ANY,
             'label': _translate("Run\t%s") % keys['runScript'],
             'status': _translate('Running experiment'),
             'func': self.panel.runLocal},
            {'id': wx.ID_ANY,
             'label': _translate('Run JS for local debug'),
             'status': _translate('Launching local debug of online study'),
             'func': self.panel.runOnlineDebug},
            {'id': wx.ID_ANY,
             'label': _translate('Run JS on Pavlovia'),
             'status': _translate('Launching online study at Pavlovia'),
             'func': self.panel.runOnline},
            ]

        menus = [
            {'menu': fileMenu, 'menuItems': fileMenuItems, 'separators': ['clear all', 'load list']},
            {'menu': viewMenu, 'menuItems': viewMenuItems, 'separators': []},
            {'menu': runMenu, 'menuItems': runMenuItems, 'separators': []},

def makeFileMenu(self):
        fileMenu = wx.Menu()
        app = wx.GetApp()
        keyCodes = app.keys
        # add items to file menu
        fileMenu.Append(wx.ID_CLOSE,
                        _translate("&Close View\t%s") % keyCodes['close'],
                        _translate("Close current window"))
        self.Bind(wx.EVT_MENU, self.closeFrame, id=wx.ID_CLOSE)
        # -------------quit
        fileMenu.AppendSeparator()
        fileMenu.Append(wx.ID_EXIT,
                        _translate("&Quit\t%s") % keyCodes['quit'],
                        _translate("Terminate the program"))
        self.Bind(wx.EVT_MENU, app.quit, id=wx.ID_EXIT)
        return fileMenu

self.userMenu.AppendSeparator()
        item = self.userMenu.Append(wx.ID_ANY,
                                    _translate("Log in to Pavlovia...\t{}")
                                    .format(keys['pavlovia_logIn']))
        parent.Bind(wx.EVT_MENU, self.onLogInPavlovia, id=item.GetId())
        self.AppendSubMenu(self.userMenu, _translate("User"))

        # search
        item = self.Append(wx.ID_ANY,
                           _translate("Search Pavlovia\t{}")
                           .format(keys['projectsFind']))
        parent.Bind(wx.EVT_MENU, self.onSearch, id=item.GetId())

        # new
        item = self.Append(wx.ID_ANY,
                           _translate("New...\t{}").format(keys['projectsNew']))
        parent.Bind(wx.EVT_MENU, self.onNew, id=item.GetId())