How to use the photini.pyqt.QtWidgets.QLabel function in Photini

QtWidgets.QShortcut(QtGui.QKeySequence.SelectAll,
                        self.scroll_area, self.select_all)
        # sort key selector
        layout.addWidget(QtWidgets.QLabel(self.tr('sort by: ')), 1, 0)
        self.sort_name = QtWidgets.QRadioButton(self.tr('file name'))
        self.sort_name.clicked.connect(self._new_sort_order)
        layout.addWidget(self.sort_name, 1, 1)
        self.sort_date = QtWidgets.QRadioButton(self.tr('date taken'))
        layout.addWidget(self.sort_date, 1, 2)
        self.sort_date.clicked.connect(self._new_sort_order)
        if eval(self.app.config_store.get('controls', 'sort_date', 'False')):
            self.sort_date.setChecked(True)
        else:
            self.sort_name.setChecked(True)
        # size selector
        layout.addWidget(QtWidgets.QLabel(self.tr('thumbnail size: ')), 1, 4)
        self.size_slider = QtWidgets.QSlider(Qt.Horizontal)
        self.size_slider.setTracking(False)
        self.size_slider.setRange(4, 9)
        self.size_slider.setPageStep(1)
        self.size_slider.setValue(self.thumb_size / 20)
        self.size_slider.setTickPosition(QtWidgets.QSlider.TicksBelow)
        width = self.size_slider.sizeHint().width()
        self.size_slider.setMinimumWidth(width * 7 // 4)
        self.size_slider.valueChanged.connect(self._new_thumb_size)
        layout.addWidget(self.size_slider, 1, 5)

##        buttons.addWidget(delete_album_button, stretch=20)
        ## album details, right hand side
        album_form_right = QtWidgets.QFormLayout()
        album_form_right.setFieldGrowthPolicy(
            QtWidgets.QFormLayout.AllNonFixedFieldsGrow)
        album_group.layout().addLayout(album_form_right)
        # album date
        self.widgets['timestamp'] = QtWidgets.QDateEdit()
        self.widgets['timestamp'].setEnabled(False)
        self.widgets['timestamp'].setMinimumDateTime(
            QtCore.QDateTime.fromTime_t(0))
        self.widgets['timestamp'].setCalendarPopup(True)
        self.widgets['timestamp'].editingFinished.connect(self.new_album_details)
        album_form_right.addRow(self.tr('Date'), self.widgets['timestamp'])
        # album thumbnail
        self.album_thumb = QtWidgets.QLabel()
        self.album_thumb.setFixedWidth(160)
        album_form_right.addRow(self.album_thumb)
        self.layout().addWidget(album_group)

def new_set(self):
        dialog = QtWidgets.QDialog(parent=self)
        dialog.setWindowTitle(translate('FlickrTab', 'Create new Flickr album'))
        dialog.setLayout(QtWidgets.QFormLayout())
        title = SingleLineEdit(spell_check=True)
        dialog.layout().addRow(translate('FlickrTab', 'Title'), title)
        description = MultiLineEdit(spell_check=True)
        dialog.layout().addRow(translate(
            'FlickrTab', 'Description'), description)
        dialog.layout().addRow(QtWidgets.QLabel(translate(
            'FlickrTab', 'Album will be created when photos are uploaded')))
        button_box = QtWidgets.QDialogButtonBox(
            QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel)
        button_box.accepted.connect(dialog.accept)
        button_box.rejected.connect(dialog.reject)
        dialog.layout().addRow(button_box)
        if dialog.exec_() != QtWidgets.QDialog.Accepted:
            return
        title = title.toPlainText()
        if not title:
            return
        description = description.toPlainText()
        widget = self.upload_config.add_set(title, description, None, index=0)
        widget.setChecked(True)

def __init__(self, name, *arg, **kw):
        super(DateAndTimeWidget, self).__init__(*arg, **kw)
        self.name = name
        self.setVerticalSpacing(0)
        self.setColumnStretch(3, 1)
        self.members = {}
        # date & time
        self.members['datetime'] = DateTimeEdit()
        self.addWidget(self.members['datetime'], 0, 0, 1, 2)
        # time zone
        self.members['tz_offset'] = TimeZoneWidget()
        self.addWidget(self.members['tz_offset'], 0, 2)
        # precision
        self.addWidget(
            QtWidgets.QLabel(translate('TechnicalTab', 'Precision:')), 1, 0)
        self.members['precision'] = Slider(Qt.Horizontal)
        self.members['precision'].setRange(1, 7)
        self.members['precision'].setPageStep(1)
        self.addWidget(self.members['precision'], 1, 1)
        # connections
        self.members['precision'].valueChanged.connect(
            self.members['datetime'].set_precision)
        self.members['datetime'].editingFinished.connect(self.editing_finished)
        self.members['tz_offset'].editingFinished.connect(self.editing_finished)
        self.members['precision'].editing_finished.connect(self.editing_finished)

layout = QtWidgets.QGridLayout()
        layout.setSpacing(0)
        layout.setContentsMargins(3, 3, 3, 3)
        self.setLayout(layout)
        self.setToolTip(self.path)
        # label to display image
        self.image = QtWidgets.QLabel()
        self.image.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
        layout.addWidget(self.image, 0, 0, 1, 2)
        # label to display file name
        self.label = QtWidgets.QLabel()
        self.label.setAlignment(Qt.AlignRight)
        scale_font(self.label, 80)
        layout.addWidget(self.label, 1, 1)
        # label to display status
        self.status = QtWidgets.QLabel()
        self.status.setAlignment(Qt.AlignLeft)
        set_symbol_font(self.status)
        scale_font(self.status, 80)
        layout.addWidget(self.status, 1, 0)
        self.setFrameStyle(QtWidgets.QFrame.Panel | QtWidgets.QFrame.Plain)
        self.setObjectName("thumbnail")
        self.set_selected(False)
        self.show_status(False)
        self._set_thumb_size(self.thumb_size)

dialog.setWindowTitle(translate('FlickrTab', 'Select an image'))
        dialog.setLayout(QtWidgets.QFormLayout())
        dialog.layout().setFieldGrowthPolicy(
            QtWidgets.QFormLayout.AllNonFixedFieldsGrow)
        pixmap = QtGui.QPixmap()
        pixmap.loadFromData(flickr_icon)
        label = QtWidgets.QLabel()
        label.setPixmap(pixmap)
        dialog.layout().addRow(label, QtWidgets.QLabel(translate(
            'FlickrTab', 'Which image file matches\nthis picture on Flickr?')))
        divider = QtWidgets.QFrame()
        divider.setFrameStyle(QtWidgets.QFrame.HLine)
        dialog.layout().addRow(divider)
        buttons = {}
        for candidate in candidates:
            label = QtWidgets.QLabel()
            pixmap = candidate.image.pixmap()
            if pixmap:
                label.setPixmap(pixmap)
            else:
                label.setText(candidate.image.text())
            button = QtWidgets.QPushButton(
                os.path.basename(candidate.path))
            button.setToolTip(candidate.path)
            button.setCheckable(True)
            button.clicked.connect(dialog.accept)
            dialog.layout().addRow(label, button)
            buttons[button] = candidate
        button = QtWidgets.QPushButton(translate('FlickrTab', 'No match'))
        button.setDefault(True)
        button.clicked.connect(dialog.reject)
        dialog.layout().addRow('', button)

def __init__(self, *arg, **kw):
        super(LensSpecWidget, self).__init__(*arg, **kw)
        self.setLayout(QtWidgets.QGridLayout())
        self.layout().setContentsMargins(6, 0, 6, 0)
        self.layout().setVerticalSpacing(0)
        for text, col in ((translate('TechnicalTab', 'min'), 1),
                          (translate('TechnicalTab', 'max'), 2)):
            label = QtWidgets.QLabel(text)
            label.setAlignment(Qt.AlignHCenter)
            self.layout().addWidget(label, 0, col)
        self.layout().addWidget(
            QtWidgets.QLabel(translate('TechnicalTab', 'Focal length')), 1, 0)
        self.layout().addWidget(
            QtWidgets.QLabel(translate('TechnicalTab', 'Max aperture')), 2, 0)
        self.multiple = QtWidgets.QLabel(multiple_values())
        self.layout().addWidget(self.multiple, 1, 1, 2, 2)
        self.multiple.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
        self.multiple.hide()
        self.values = {
            'min_fl'    : QtWidgets.QLabel(),
            'max_fl'    : QtWidgets.QLabel(),
            'min_fl_fn' : QtWidgets.QLabel(),
            'max_fl_fn' : QtWidgets.QLabel(),
            }
        for key in self.values:
            self.values[key].setAlignment(Qt.AlignHCenter)
        self.layout().addWidget(self.values['min_fl'], 1, 1)
        self.layout().addWidget(self.values['max_fl'], 1, 2)
        self.layout().addWidget(self.values['min_fl_fn'], 2, 1)
        self.layout().addWidget(self.values['max_fl_fn'], 2, 2)

break
        else:
            # new upload
            return {
                'set_metadata'  : True,
                'set_visibility': True,
                'set_type'      : True,
                'set_albums'    : True,
                'replace_image' : False,
                'new_photo'     : True,
                }, None
        # get user preferences
        dialog = QtWidgets.QDialog(parent=self)
        dialog.setWindowTitle(translate('FlickrTab', 'Replace photo'))
        dialog.setLayout(QtWidgets.QVBoxLayout())
        message = QtWidgets.QLabel(translate(
            'FlickrTab', 'File {0} has already been uploaded to Flickr.'
            ' How would you like to update it?').format(
                os.path.basename(image.path)))
        message.setWordWrap(True)
        dialog.layout().addWidget(message)
        widget = {}
        widget['set_metadata'] = QtWidgets.QCheckBox(
            translate('FlickrTab', 'Replace metadata'))
        widget['set_visibility'] = QtWidgets.QCheckBox(
            translate('FlickrTab', 'Change who can see it'))
        widget['set_type'] = QtWidgets.QCheckBox(
            translate('FlickrTab', 'Change content type'))
        widget['set_albums'] = QtWidgets.QCheckBox(
            translate('FlickrTab', 'Change album membership'))
        widget['replace_image'] = QtWidgets.QCheckBox(
            translate('FlickrTab', 'Replace image'))

def __init__(self, *arg, **kw):
        super(LensSpecWidget, self).__init__(*arg, **kw)
        self.setLayout(QtWidgets.QGridLayout())
        self.layout().setContentsMargins(6, 0, 6, 0)
        self.layout().setVerticalSpacing(0)
        for text, col in ((translate('TechnicalTab', 'min'), 1),
                          (translate('TechnicalTab', 'max'), 2)):
            label = QtWidgets.QLabel(text)
            label.setAlignment(Qt.AlignHCenter)
            self.layout().addWidget(label, 0, col)
        self.layout().addWidget(
            QtWidgets.QLabel(translate('TechnicalTab', 'Focal length')), 1, 0)
        self.layout().addWidget(
            QtWidgets.QLabel(translate('TechnicalTab', 'Max aperture')), 2, 0)
        self.multiple = QtWidgets.QLabel(multiple_values())
        self.layout().addWidget(self.multiple, 1, 1, 2, 2)
        self.multiple.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
        self.multiple.hide()
        self.values = {
            'min_fl'    : QtWidgets.QLabel(),
            'max_fl'    : QtWidgets.QLabel(),
            'min_fl_fn' : QtWidgets.QLabel(),
            'max_fl_fn' : QtWidgets.QLabel(),
            }