Работа циклами в Pyqt5

import  sys
from inter_черновик import *
app = QtWidgets.QApplication(sys.argv)
Form = QtWidgets.QWidget()
ui = Ui_Form()
ui.setupUi(Form)
 
def data():
    a=ui.horizontalSlider.maximum()#Получаем максимальное значение лайдера
    b = [1, 2, 3, 4, 5, 6, 7, 8]
    if ui.horizontalSlider.value()>=a-len(b):
        for i in b:
            ui.label.setText(str(i))
    else:
        ui.label.setText("Нет данных")
 
ui.horizontalSlider.valueChanged.connect(data)
data()
Form.show()
sys.exit(app.exec_())

# -*- coding: utf-8 -*-
 
# Form implementation generated from reading ui file 'черновик.ui'
#
# Created by: PyQt5 UI code generator 5.15.7
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.
 
 
from PyQt5 import QtCore, QtGui, QtWidgets
 
 
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(1070, 755)
        self.horizontalSlider = QtWidgets.QSlider(Form)
        self.horizontalSlider.setGeometry(QtCore.QRect(20, 700, 1031, 31))
        self.horizontalSlider.setStyleSheet("\n"
"            QSlider{\n"
"                background: #E3DEE2;\n"
"            }\n"
"            QSlider::groove:horizontal {  \n"
"                height: 10px;\n"
"                margin: 0px;\n"
"                border-radius: 5px;\n"
"                background: #B0AEB1;\n"
"            }\n"
"            QSlider::handle:horizontal {\n"
"                background: #fff;\n"
"                border: 1px solid #E3DEE2;\n"
"                width: 17px;\n"
"                margin: -5px 0; \n"
"                border-radius: 8px;\n"
"            }\n"
"            QSlider::sub-page:qlineargradient {\n"
"                background: #3B99FC;\n"
"                border-radius: 5px;\n"
"            }\n"
"        ")
        self.horizontalSlider.setMaximum(24)
        self.horizontalSlider.setOrientation(QtCore.Qt.Horizontal)
        self.horizontalSlider.setObjectName("horizontalSlider")
        self.label = QtWidgets.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(410, 620, 141, 61))
        font = QtGui.QFont()
        font.setPointSize(14)
        self.label.setFont(font)
        self.label.setObjectName("label")
 
        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)
 
    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.label.setText(_translate("Form", "TextLabel"))
 
 
if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Form = QtWidgets.QWidget()
    ui = Ui_Form()
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())

def data():
    a=ui.horizontalSlider.maximum()#Получаем максимальное значение лайдера
    b = [1, 2, 3, 4, 5, 6, 7, 8]
    if ui.horizontalSlider.value() >= a - len(b):
        ui.label.setText('')
        for i in b:
            ui.label.setText(ui.label.text() + str(i))
    else:
        ui.label.setText("Нет данных")

def data():
    a=ui.horizontalSlider.maximum() #Получаем максимальное значение лайдера
    b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
    if ui.horizontalSlider.value() > a - len(b):
        ui.label.setText(str(b[ui.horizontalSlider.value() - (a - len(b)) - 1]))
    else:
        ui.label.setText("Нет данных")