код randomiser

#Импортируем всё необходимое

from PyQt5 import QtCore, QtGui, QtWidgets

import sys

import random

#графический дизайн

class Ui_Randomiser(object):

    def setupUi(self, Randomiser):

        Randomiser.setObjectName("Randomiser")

        Randomiser.resize(500, 450)

        font = QtGui.QFont()

        font.setPointSize(12)

        Randomiser.setFont(font)

        Randomiser.setStyleSheet("background-color: qconicalgradient(cx:0.5, cy:0.5, angle:0, stop:0 rgba(255, 255, 255, 255), stop:0.373979 rgba(255, 255, 255, 255), stop:0.373991 rgba(33, 30, 255, 255), stop:0.624018 rgba(33, 30, 255, 255), stop:0.624043 rgba(255, 0, 0, 255), stop:1 rgba(255, 0, 0, 255));\n"

"background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0.227273 rgba(100, 43, 255, 255), stop:0.852273 rgba(21, 117, 255, 255));")

        self.centralwidget = QtWidgets.QWidget(Randomiser)

        self.centralwidget.setObjectName("centralwidget")

        self.Text_Random = QtWidgets.QLabel(self.centralwidget)

        self.Text_Random.setGeometry(QtCore.QRect(0, 350, 501, 51))

        self.Text_Random.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0.227273 rgba(100, 43, 255, 255), stop:0.852273 rgba(21, 117, 255, 255));\n"

"background-color: qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0 rgba(255, 235, 235, 206), stop:0.35 rgba(255, 188, 188, 80), stop:0.4 rgba(255, 162, 162, 80), stop:0.425 rgba(255, 132, 132, 156), stop:0.44 rgba(252, 128, 128, 80), stop:1 rgba(255, 255, 255, 0));\n"

"background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0.227273 rgba(100, 43, 255, 0), stop:0.852273 rgba(21, 117, 255, 0));\n")

        self.Text_Random.setText("")

        self.Text_Random.setScaledContents(False)

        self.Text_Random.setAlignment(QtCore.Qt.AlignCenter)

        self.Text_Random.setObjectName("Text_Random")

        self.btn_Start = QtWidgets.QPushButton(self.centralwidget)

        self.btn_Start.setGeometry(QtCore.QRect(150, 210, 200, 100))

        font = QtGui.QFont()

        font.setPointSize(12)

        font.setBold(True)

        font.setWeight(75)

        self.btn_Start.setFont(font)

        self.btn_Start.setObjectName("btn_Start")

        self.Label_Result = QtWidgets.QLabel(self.centralwidget)

        self.Label_Result.setGeometry(QtCore.QRect(150, 340, 191, 61))

        font = QtGui.QFont()

        font.setFamily("MS Shell Dlg 2")

        font.setPointSize(8)

        font.setBold(False)

        font.setItalic(False)

        font.setWeight(9)

        font.setStyleStrategy(QtGui.QFont.PreferDefault)

        self.Label_Result.setFont(font)

        self.Label_Result.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 0), stop:1 rgba(255, 255, 255, 0));")

        self.Label_Result.setFrameShape(QtWidgets.QFrame.NoFrame)

        self.Label_Result.setAlignment(QtCore.Qt.AlignCenter)

        self.Label_Result.setObjectName("Label_Result")

        self.labelMin = QtWidgets.QLabel(self.centralwidget)

        self.labelMin.setGeometry(QtCore.QRect(60, 120, 71, 41))

        font = QtGui.QFont()

        font.setPointSize(12)

        self.labelMin.setFont(font)

        self.labelMin.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 0), stop:1 rgba(255, 255, 255, 0));")

        self.labelMin.setObjectName("labelMin")

        self.MinLineEdit = QtWidgets.QLineEdit(self.centralwidget)

        self.MinLineEdit.setGeometry(QtCore.QRect(132, 129, 91, 31))

        self.MinLineEdit.setText("")

        self.MinLineEdit.setObjectName("MinLineEdit")

        self.labelMax = QtWidgets.QLabel(self.centralwidget)

        self.labelMax.setGeometry(QtCore.QRect(256, 113, 71, 51))

        font = QtGui.QFont()

        font.setPointSize(12)

        self.labelMax.setFont(font)

        self.labelMax.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 0), stop:1 rgba(255, 255, 255, 0));")

        self.labelMax.setObjectName("labelMax")

        self.MaxLineEdit = QtWidgets.QLineEdit(self.centralwidget)

        self.MaxLineEdit.setGeometry(QtCore.QRect(310, 130, 91, 31))

        self.MaxLineEdit.setText("")

        self.MaxLineEdit.setObjectName("MaxLineEdit")

        Randomiser.setCentralWidget(self.centralwidget)

        self.statusbar = QtWidgets.QStatusBar(Randomiser)

        self.statusbar.setObjectName("statusbar")

        Randomiser.setStatusBar(self.statusbar)

        self.retranslateUi(Randomiser)

        QtCore.QMetaObject.connectSlotsByName(Randomiser)

#вызываем функцию для нашего функционала

        self.add_function()

#назначаем текст на кнопках и надписях

    def retranslateUi(self, Randomiser):

        _translate = QtCore.QCoreApplication.translate

        Randomiser.setWindowTitle(_translate("Randomiser", "Случайный выбор числа"))

        self.btn_Start.setText(_translate("Randomiser", "Start"))

        self.Label_Result.setText(_translate("Randomiser", "Тут будет результат"))

        self.labelMin.setText(_translate("Randomiser", "Min:"))

        self.labelMax.setText(_translate("Randomiser", "Max:"))

#фукционал

  #назначаем кнопку к функции чтобы она работала

    def add_function(self):

        self.btn_Start.clicked.connect(self.random_func)

  #функция рандома, кнопки Start и подбора чисел

    def random_func(self):

        try:

            min_value = int(self.MinLineEdit.text())

            max_value = int(self.MaxLineEdit.text())

            aboba = random.randint(min_value, max_value)

            self.Label_Result.setText("Случайное число:" + str(aboba))

            self.btn_Start.setText("Ещё разок?")

        except ValueError:

            self.Label_Result.setText('обозначте: Min: числo, Max: числo')

            self.btn_Start.setText("Попробуйте ещё раз")

#запуск и открытие

if __name__ == "__main__":

    import sys

    app = QtWidgets.QApplication(sys.argv)

    Randomiser = QtWidgets.QMainWindow()

    ui = Ui_Randomiser()

    ui.setupUi(Randomiser)

    Randomiser.show()

    sys.exit(app.exec_())