Не получается вставить виджет внутрь другого виджета

У меня есть небольшая программа, в которой есть 4 страницы, и я хочу вставить в 4 страницу виджет с погодой, однако виджет не появляется внутри 4 страницы, а появляется в виде нового окна и я не понимаю почему.

Вот основной код, в который надо вставить виджет:

import sys
from PyQt5 import QtCore, QtGui, QtWidgets

from PyQt5.Qt import *

from main import App                              # +++ 


class MainWindow(QtWidgets.QMainWindow):
    def __init__(self): 
        super().__init__()
        #размер основного окн
        self.resize(845, 535)
        self.setFixedSize(QtCore.QSize(845,535))
#        
        self.setStyleSheet("background-color: rgb(245, 45, 45);")        
        #центральный виджет
        self.centralwidget = QtWidgets.QWidget()
        self.centralwidget.setObjectName("centralwidget")
        self.setCentralWidget(self.centralwidget)
        
# Content horizontalLayout_2 
        self.Content = QtWidgets.QFrame(self.centralwidget)
        self.Content.setStyleSheet("background-color: rgb(255, 255, 255);")
        
        self.Content.setFrameShape(QtWidgets.QFrame.NoFrame)
        self.Content.setFrameShadow(QtWidgets.QFrame.Raised)
        self.Content.setObjectName("Content")
        self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.Content)
        self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.horizontalLayout_2.setSpacing(0)
        #виджет слева
        self.frame_left_menu = QtWidgets.QFrame(self.Content)
        self.frame_left_menu.setMinimumSize(QtCore.QSize(45, 0))
       
        self.frame_left_menu.setStyleSheet("background-color: rgb(255, 255, 255); border: 0px solid; ")
        
        self.frame_left_menu.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.frame_left_menu.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame_left_menu.setObjectName("frame_left_menu")
        self.verticalLayout_3 = QtWidgets.QVBoxLayout(self.frame_left_menu)
        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
        

        self.frame_top_menus = QtWidgets.QFrame(self.frame_left_menu)
        self.frame_top_menus.setFrameShape(QtWidgets.QFrame.NoFrame)
        self.frame_top_menus.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame_top_menus.setObjectName("frame_top_menus")
        #указываем вертикальное выравнивание
        self.verticalLayout_4 = QtWidgets.QVBoxLayout(self.frame_top_menus)
        self.verticalLayout_4.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_4.setSpacing(10)


        
        #домик                                  
        self.btn_page_1 = QtWidgets.QPushButton("", self.frame_top_menus)
        self.btn_page_1.setIcon(QIcon('дом.png'))
        self.btn_page_1.setIconSize(QSize(45,45))
        self.btn_page_1.setMinimumSize(QtCore.QSize(0, 40))

        self.btn_page_1.setStyleSheet('border: 0px solid red;')
                
        self.btn_page_1.setObjectName("btn_page_1")
        self.verticalLayout_4.addWidget(self.btn_page_1)
        #Заметки
        self.btn_page_2 = QtWidgets.QPushButton("", self.frame_top_menus)
        self.btn_page_2.setIcon(QIcon('заметка1.png'))
        self.btn_page_2.setIconSize(QSize(45,45))
        self.btn_page_2.setMinimumSize(QtCore.QSize(0, 40))

        self.btn_page_2.setStyleSheet('border: 0px solid red;')
        self.btn_page_2.setObjectName("btn_page_2")
       
        self.verticalLayout_4.addWidget(self.btn_page_2)

        #погода
        self.btn_page_3 = QtWidgets.QPushButton("", self.frame_top_menus)
        self.btn_page_3.setIcon(QIcon('солнышко.png'))
        self.btn_page_3.setIconSize(QSize(45,45))
        self.btn_page_3.setMinimumSize(QtCore.QSize(0, 40))



        self.btn_page_4 = QtWidgets.QPushButton('', self.frame_top_menus)
        self.btn_page_4.setIcon(QIcon('папочка.png'))                          
        self.btn_page_4.setIconSize(QSize(45, 45))
        self.btn_page_4.setMinimumSize(QtCore.QSize(0, 40))


        timer = QTimer(self)
        timer.timeout.connect(self.showTime)
        timer.start(1000)

        font1 = QFont('Century Gothic', 13, QFont.Bold)
        self.timewidget = QtWidgets.QLabel()
        self.timewidget.setMinimumSize(QtCore.QSize(45,45))
        self.timewidget.setAlignment(Qt.AlignBottom)
        self.timewidget.setFont(font1)

        self.btn_page_3.setObjectName("btn_page_3")
        self.verticalLayout_4.addWidget(self.btn_page_3)
        
        self.verticalLayout_3.addWidget(self.frame_top_menus, 0, QtCore.Qt.AlignTop)
        self.horizontalLayout_2.addWidget(self.frame_left_menu)

               
        self.verticalLayout_4.addWidget(self.btn_page_4)                      

        self.frame_pages = QtWidgets.QFrame(self.Content)
        self.frame_pages.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.frame_pages.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame_pages.setObjectName("frame_pages")
        self.verticalLayout_5 = QtWidgets.QVBoxLayout(self.frame_pages)
        self.verticalLayout_5.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_5.setObjectName("verticalLayout_5")
        
        self.stackedWidget = QtWidgets.QStackedWidget(self.frame_pages)
        self.stackedWidget.setMinimumSize(QtCore.QSize(800, 535))


        self.stackedWidget.setObjectName("stackedWidget")
        
#1 страница
        self.page_1 = QtWidgets.QWidget()
        self.page_1.setObjectName("page_1")
        self.verticalLayout_7 = QtWidgets.QVBoxLayout(self.page_1)
        self.verticalLayout_7.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_7.setObjectName("verticalLayout_7")
        #указываем что будет находится на 1 странице
        self.label_1 = QtWidgets.QLabel(self.page_1)
        font = QtGui.QFont()
        font.setPointSize(40)
        font.setFamily("Century Gothic")
        font.setPointSize(15)
        font.setKerning(True)
        self.label_1.setFont(font)
        
        self.label_1.setAlignment(QtCore.Qt.AlignCenter)
        self.label_1.setObjectName("label_1")
        self.verticalLayout_7.addWidget(self.label_1)
        self.stackedWidget.addWidget(self.page_1)
        
        #2 страница
        self.page_2 = QtWidgets.QWidget()
        self.page_2.setObjectName("page_2")
        self.verticalLayout_6 = QtWidgets.QVBoxLayout(self.page_2)
        self.verticalLayout_6.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_6.setObjectName("verticalLayout_6")
        #указываем что будет находиться в 2 странице
        self.label_2 = QtWidgets.QLabel("Страница2", self.page_2)
        font = QtGui.QFont()
        font.setPointSize(40)
        font.setFamily("Century Gothic")
        font.setPointSize(15)
        font.setKerning(True)
        self.label_2.setFont(font)
        self.label_2.setStyleSheet("color: #FFF; background-color: #1eae98;")
        self.label_2.setAlignment(QtCore.Qt.AlignCenter)
        self.label_2.setObjectName("label_2")
        self.verticalLayout_6.addWidget(self.label_2)
        self.stackedWidget.addWidget(self.page_2)
        #3 страница
        self.page_3 = QtWidgets.QWidget()
        self.page_3.setObjectName("page_3")
        self.verticalLayout_8 = QtWidgets.QVBoxLayout(self.page_3)
        self.verticalLayout_8.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_8.setObjectName("verticalLayout_8")
        #указываем что будет находиться на 3 странице
        self.label = QtWidgets.QLabel("Страница3", self.page_3)
        font = QtGui.QFont()

        font.setFamily("Century Gothic")
        font.setPointSize(15)
        font.setKerning(True)
        self.label.setFont(font)
        self.label.setStyleSheet("color: green; background-color: black;")
        self.label.setAlignment(QtCore.Qt.AlignCenter)
        self.label.setObjectName("label")
        self.verticalLayout_8.addWidget(self.label)
        self.stackedWidget.addWidget(self.page_3)

# page_4 verticalLayout_9
        self.page_4 = QtWidgets.QWidget()
        self.page_4.setObjectName('page_4')
     
        
        self.verticalLayout_9 = QtWidgets.QVBoxLayout(self.page_4)               

        self.verticalLayout_9.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_9.setSpacing(0)
        self.verticalLayout_9.setObjectName('verticalLayout_9')


        self.main = App()
        self.verticalLayout_9.addWidget(self.main)
       
        self.stackedWidget.addWidget(self.page_4)

        self.verticalLayout_5.addWidget(self.stackedWidget)
        self.horizontalLayout_2.addWidget(self.frame_pages)
        self.stackedWidget.setCurrentIndex(0)
        
# verticalLayout  centralwidget     
        self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)    
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
# verticalLayout.addWidget(self.Content)        
        self.verticalLayout.addWidget(self.Content)

        #Нажатие на дом
        self.btn_page_1.clicked.connect(
            lambda: self.stackedWidget.setCurrentWidget(self.page_1))
        #Нажатие на заметки
        self.btn_page_2.clicked.connect(
            lambda: self.stackedWidget.setCurrentWidget(self.page_2))
        #Нажатие на погоду
        self.btn_page_3.clicked.connect(
            lambda: self.stackedWidget.setCurrentWidget(self.page_3))

        self.btn_page_4.clicked.connect(
            lambda: self.stackedWidget.setCurrentWidget(self.page_4))

        self.frame_left_menu.installEventFilter(self)
        self.verticalLayout_3.addWidget(self.timewidget, 0, QtCore.Qt.AlignBottom)

   
# календарь

        self.calendarWidget = QtWidgets.QCalendarWidget(self.page_1)
        self.calendarWidget.setEnabled(True)
        self.calendarWidget.setGeometry(QtCore.QRect(0, 154, 800, 381))
        self.calendarWidget.setFixedSize(QtCore.QSize(800, 381))
        
        font = QtGui.QFont()
        font.setFamily("Century Gothic")
        font.setPointSize(15)
        font.setKerning(False)
        self.calendarWidget.setFont(font)
        self.calendarWidget.setAutoFillBackground(True)

        
        self.calendarWidget.setGridVisible(False)
        
        self.calendarWidget.setVerticalHeaderFormat(QtWidgets.QCalendarWidget.NoVerticalHeader)
        self.calendarWidget.setDateEditEnabled(False)
        self.calendarWidget.setDateEditAcceptDelay(0)
        self.calendarWidget.setObjectName("calendarWidget")
        
        self.calendarWidget.setStyleSheet(StyleSheet)
      
        self.verticalLayout_7.addWidget(self.calendarWidget)

    def showTime(self):
        current_time = QtCore.QTime.currentTime()
        label_time = current_time.toString('hh:mm')
        self.timewidget.setText(label_time)
 

StyleSheet = '''
/* Верхняя область навигации                            */
#qt_calendar_navigationbar {
    background-color: rgb(0, 188, 212);
    min-width: 800px;
    max-width: 800px;
    min-height: 35px;
    max-height: 35px;
}

/*  Кнопка последнего месяца и кнопка следующего месяца */
#qt_calendar_prevmonth, #qt_calendar_nextmonth {
    border: none;                     /* убрать границу */
    margin-top: 0px;
    color: white;
    min-width: 30px;
    max-width: 30px;
    min-height: 30px;
    max-height: 30px;
    border-radius: 10px;            /* выглядит как эллипс */
    font-weight: bold;              /* шрифт полужирный    */
    qproperty-icon: none;    
    background-color: transparent; /* Цвет фона прозрачный */
}

#qt_calendar_prevmonth {
    qproperty-text: "<";         /* Изменить текст кнопки  */
}
#qt_calendar_nextmonth {
    qproperty-text: ">";
}
#qt_calendar_prevmonth:hover, #qt_calendar_nextmonth:hover {
    background-color: rgba(225, 225, 225, 100);
}
#qt_calendar_prevmonth:pressed, #qt_calendar_nextmonth:pressed {
    background-color: rgba(235, 235, 235, 100);
}

/*  год, месяц                                                */
#qt_calendar_yearbutton, #qt_calendar_monthbutton {
    color: white;
    margin: -1px;
    min-width: -1px;
    border-radius: 15px;
    background-color: rgba(0, 188, 212, 100)
}
#qt_calendar_yearbutton:hover, #qt_calendar_monthbutton:hover {
    background-color: rgba(225, 225, 225, 100);
}
#qt_calendar_yearbutton:pressed, #qt_calendar_monthbutton:pressed {
    background-color: rgba(235, 235, 235, 100);
}

/* Поле ввода года                                                        */
#qt_calendar_yearedit {
    min-width: 85px;
    color: white;
    background: transparent;         /* Сделать фон окна ввода прозрачным */
}
#qt_calendar_yearedit::up-button {   /* Кнопка вверх                      */
    width: 25px;
    subcontrol-position: right;      
}
#qt_calendar_yearedit::down-button { /* Кнопка вниз     */
    width: 25px;
    subcontrol-position: left;       
}

/* меню выбора месяца                                          */
CalendarWidget_QToolButton_QMenu {
     background-color: white;
}

CalendarWidget_QToolButton_QMenu_item {
    padding: 10px;
}
CalendarWidget_QToolButton_QMenu_item_selected_enabled {
    background-color: rgb(230, 230, 230);
    selection-color: rgb(45, 86, 100);
    selection-background-color: rgb(205, 217, 226);
}
CalendarWidget_QToolButton_menu-indicator {
    subcontrol-position: right center;                
}

/* ниже календарной формы */
#qt_calendar_calendarview {
    outline: 0px;                                 /* Удалить выделенную пунктирную рамку */
    selection-background-color: rgb(0, 188, 212); 
}
'''


if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    app.setFont(QtGui.QFont("Century Gothic", 12,))
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

Вот код виджета, который надо вставить:

Чтобы виджет работал нужны еще несколько файлов, которые я загрузил в яндекс диск

import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5 import uic, QtCore, QtTest, QtWidgets
from PyQt5.QtGui import QPixmap
from PyQt5.QtCore import QThread
import weather
import time
import datetime
from weather import DAYS 

#два класса с числами Фобаначе , для правного визуала 
H_show = [
    155,156,157,158,
    160,168,181,202,
    236,291,380,400,
    440,500,535,
]
H_hide = [
    155,156,157,158,
    160,168,181,202,
    236,291,380,400,
    440,500,535,
]

class WeatherData(QThread):
    req = weather.today()
    temp = req['temp']
    feels = req['feels']
    pres = req['pressure']
    speed = str(req['wind']['speed'])
    city = req['city']
    type = req['dis']


    week = weather.week()



    def __init__(self):
        QThread.__init__(self)


    def run(self):
        while True:
            try:
                req = weather.today()
            except:
                req['temp'] = self.temp
                req['feels'] = self.feels
                req['pressure'] = self.pres
                req['wind']['speed'] = self.pres
                req['city'] = self.city
                req['dis'] = self.type

            try:
                req_week = weather.week()
                self.week = req_week
            except:
                self.week = DAYS

            self.temp = req['temp']
            self.feels = req['feels']
            self.pres = req['pressure']
            self.speed = str(req['wind']['speed'])
            self.city = req['city']
            self.type = req['dis']
            time.sleep(600)


class App(QWidget):
    #
    #
    #
    #
    #
    #
    #
    show_more = True 

    def __init__(self):
        super().__init__()
        self.weather = WeatherData()
        self.weather.start()
        
        self.set()
        self.setData()
        self.setMore()
 
    def set(self):
        self.w_root = uic.loadUi('root.ui')
        self.w_root.installEventFilter(self)
        self.w_root.btn_more.clicked.connect(self.setHeight)
        self.w_root.show()
#
#
#
#
#
#
#
# перемещение кнопки с ресайзом
    def eventFilter(self, object, event):
        self.w_root.resize(444, self.w_root.height())
        self.w_root.btn_more.move(0, self.w_root.height()-26)
        self.w_root.l_day.move(8, self.w_root.height()-18)
        QtWidgets.QApplication.processEvents()
        return False
#
#
#
#
#
#
#
#

#устанавливаем значение на сегодня
    def setData(self):
        # данные погоды
        self.w_root.l_temp.setText(str(self.weather.temp) + '°C')
        self.w_root.l_fell.setText(self.weather.feels)
        self.w_root.l_pres.setText(self.weather.pres)
        self.w_root.l_wind.setText(self.weather.speed + 'м/с')
        self.w_root.l_city.setText(self.weather.city)
        self.w_root.l_type.setText(self.weather.type)

        #иконка погоды
        px_logo = QPixmap(f'C:/python/pogoda/{self.weather.type}.png')
        self.w_root.l_logo.setPixmap(px_logo)

        #день недели
        today = DAYS[datetime.datetime.today().weekday()]
        self.w_root.l_day.setText(today['title'])
        color = today['color']
        self.w_root.l_day.setStyleSheet(f'color:{color}')

#
#

    def setHeight(self):
        if self.w_root.height() >= 200:
            self.show_more = False
        if self.show_more:
            for i in H_hide:
                if self.w_root.height() > i:
                    continue
                self.w_root.resize(444, i)
                self.w_root.btn_more.move(0, i-26)
                self.w_root.l_day.move(8,i-18)
                QtWidgets.QApplication.processEvents()
                time.sleep(.02)
            self.show_more = False
        else:
            for i in reversed(H_show):
                self.w_root.resize(444, i)
                self.w_root.btn_more.move(0, i-26)
                self.w_root.l_day.move(8,i-18)
                QtWidgets.QApplication.processEvents()
                time.sleep(.02)
            self.show_more = True
        App.show_more = self.show_more
#
#
#
#
#
#
#



    def setMore(self):
        for i in self.weather.week:
            w_day = uic.loadUi('day.ui')
            w_day.setObjectName('w_day_' + str(i['num']))
            w_day.l_title.setText(i['title'])
            w_day.l_temp.setText(str(round(i['temp'])) + '°C')
            w_day.l_type.setText(i['type'])
            w_day.l_title.setStyleSheet('color: ' + i['color'] + '; background-color: none; border: none')
            if i['active']:
                w_day.setStyleSheet('border: 1px solid' + i['color'])
            else:
                w_day.setStyleSheet('border: none')
            self.w_root.box.addWidget(w_day)
        self.w_root.box.addStretch()







if __name__ == '__main__':
    app = QApplication(sys.argv)

    ex = App()
    ex.show
    sys.exit(app.exec_())