5478512's questions

主文件有一个路径：С:\\myapp\app.py 工作还需要第二个文件：С:\\myapp\folder\additional_file.py

如何将文件additional_file.py导入app.py?

我尝试添加QVBoxLayout - QScrollArea和QScrollBar。
如layout添加它们的小部件所示player（2 件）。

滚动时，小部件成倍增加。如果它很简单，那么你需要做QScrollAreaand QScrollBar，当滚动 which 时，它们会滚动player'ы。

它应该看起来如何，大约（小部件移出）：

我得到什么：

这是部分代码： Main.py

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt
import sys, os

import player
class Main(QtWidgets.QWidget): 
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.setFixedSize(750, 560)

        self.p1 = player.player_1()
        
        self.lay = QHBoxLayout(self)
        self.lay.setContentsMargins(0,0,0,0)
        
        self.scroll_area = QtWidgets.QScrollArea(self)                                        # 2
        self.scroll_area.setLayout(self.lay)
        self.scroll_area.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)

        self.scrollbar = QtWidgets.QScrollBar(Qt.Horizontal, self)                            # 3
        self.scrollbar.setMaximum(250)

        self.scrollbar.valueChanged.connect(self.sync_func)                         # 4

        self.v_layout = QtWidgets.QVBoxLayout(self)
        self.v_layout.addWidget(self.scroll_area)
        self.v_layout.addWidget(self.scrollbar)

    def sync_func(self):
        self.scroll_area.horizontalScrollBar().setValue(self.scrollbar.value() * 1)

        self.lay.addWidget(Sttings())
        self.lay.addWidget(player.player_1())
        self.lay.addWidget(player.player_1())


        self.transition()

    def transition(self):

        player.reputation_perem = player.reputation_perem + (player.reputation_perem / 100 * 5)
        player.money_perem = player.money_perem + player.income_perem

       #reputation_perem_2 = reputation_perem_2 + (reputation_perem_2 / 100 * 5)
       #income_perem_2 = income_perem_old_2 / 100 * (100 - (100 - reputation_perem_2))
       #money_perem_2 = money_perem_2 + income_perem_2
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)                        
    w = Main()
    w.show()

    file = QtCore.QFile("C:/for cheacher/3_mate_files/dark.qss")                              
    file.open(QtCore.QFile.ReadOnly | QtCore.QFile.Text)
    stream = QtCore.QTextStream(file)
    app.setStyleSheet(stream.readAll())

    sys.exit(app.exec_())

播放器.py：

money_perem = 0
income_perem_old = 500
income_perem = 0
credit_perem = 0
reputation_perem = 20
class player_1(QtWidgets.QWidget): 
    def __init__(self, parent=None):
        global money_perem, credit_perem, reputation_perem, income_perem, income_perem_old
        super(player_1, self).__init__(parent)
    
        self.setFixedSize(350, 550)
    
    #   изображение
        self.Label_ing = QLabel('', self)
        self.img = QtGui.QPixmap('C:/py/Monopolya/polzovatel_1.png')
        self.Label_ing.setPixmap(self.img)
    
        self.Label_ing.move(75, 20)
    
    
    #   манипуляции
    
    #   Валюта
        self.PB_money = QPushButton('Валюта ₽', self)
        self.PB_money.move(15, 260)
        self.PB_money.resize(150, 25)
        self.PB_money.setStyleSheet('font: 13pt \'Arial Black\'')
    
        self.PB_money.clicked.connect(self.money_func)
    
    #   Репутация
        self.PB_reputation = QPushButton('Репутация ⓇⓅ', self)
        self.PB_reputation.move(185, 260)
        self.PB_reputation.resize(150, 25)
        self.PB_reputation.setStyleSheet('font: 13pt \'Arial Black\'')
    
        self.PB_reputation.clicked.connect(self.reputation_func)
    
    #   Кредит
        self.PB_credit = QPushButton("Кредит", self)
        self.PB_credit.move(15, 300)
        self.PB_credit.resize(150, 25)
        self.PB_credit.setStyleSheet('font: 13pt \'Arial Black\'')
    
        self.PB_credit.clicked.connect(self.credit_func)
    #   Доход
        self.PB_income = QPushButton('Доход', self)
        self.PB_income.move(185, 300)
        self.PB_income.resize(150, 25)
        self.PB_income.setStyleSheet('font: 13pt \'Arial Black\'')
    
        self.PB_income.clicked.connect(self.income_func)
    
     #   информация
    
        self.Label_Money = QLabel(self)
        self.Label_Money.move(50, 350)
        self.Label_Money.resize(400, 25)
        self.Label_Money.setStyleSheet("font: 15pt \'Arial Black\'")
    
        self.Label_reputation = QLabel(self)
        self.Label_reputation.move(50, 400)
        self.Label_reputation.resize(400, 25)
        self.Label_reputation.setStyleSheet("font: 15pt \'Arial Black\'")
    
        self.Label_income = QLabel(self)
        self.Label_income.move(50, 450)
        self.Label_income.resize(400, 25)
        self.Label_income.setStyleSheet("font: 15pt \'Arial Black\'")
    
        self.Label_credit = QLabel(self)
        self.Label_credit.move(50, 500)
        self.Label_credit.resize(400, 25)
        self.Label_credit.setStyleSheet("font: 15pt \'Arial Black\'")
    
        self.t = QtCore.QTimer(interval=100)
        self.t.timeout.connect(self.update_info)
        self.t.start()
    
    def update_info(self):
        global money_perem, reputation_perem, income_perem, credit_perem, income_perem_old
    
        income_perem = income_perem_old / 100 * (100 - (100 - reputation_perem))
    
        self.Label_Money.setText('Деньги: ' + str(money_perem / 1000000) + ' ' + "млн ₽")
        self.Label_reputation.setText('Репутация: ' + str(reputation_perem) + ' ' + 'ⓇⓅ')
        self.Label_income.setText('Доход: ' + str(income_perem / 1000) + ' ' + '(' + str(income_perem_old / 1000) + ')' + ' тыс ₽')
        self.Label_credit.setText('Кредит: ' + str(credit_perem / 1000000) + ' ' + 'млн ₽')
    
    
    
    def credit_func(self):
        self.cr = credit()
        self.cr.show()
    def money_func(self):
        self.m = money()
        self.m.show()
    def reputation_func(self):
        self.rep = reputation()
        self.rep.show()
    def income_func(self):
        self.incom = income()
        self.incom.show()
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)                        
    file = QtCore.QFile("C:/for cheacher/3_mate_files/dark.qss")                              
    file.open(QtCore.QFile.ReadOnly | QtCore.QFile.Text)
    stream = QtCore.QTextStream(file)
    app.setStyleSheet(stream.readAll())

    w = player_1()
    w.show()

    sys.exit(app.exec_())

有一个文件：https ://yadi.sk/d/xsjJ3dEqb4pvlQ （它是打开的）我怎样才能下载它？不需要授权等。

关闭程序时如何询问是否关闭程序？

代码示例：

from PyQt5 import QtCore, QtGui, QtWidgets
import sys

class Main(object):
    def __init__(self):
        super(Main, self).__init__()
        self.setFixedSize(423, 293)

        self.lineEdit1 = QtWidgets.QLineEdit("", self)
        self.lineEdit1.resize(321, 51)
        self.lineEdit1.move(50, 80)

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)                        
    w = Main()
    w.show()
    
    sys.exit(app.exec_())

有没有QLabel办法改变文字颜色RGB？

self.Label = QtWidgets.QLabel("", self)
self.Label.move(50, 30)
self.Label.resize(421, 41)

我怎样才能改变这部分checkbox？

self.CB_30min = QCheckBox("15 мин", self)
self.CB_30min.move(310, 110)
self.CB_30min.resize(91, 31)

有窗户main和 win如果窗口打开，如果它关闭，则win写入控制台。"окно открыто""окно закрыто"

怎么做？

代码示例：

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_main(object):
    def setupUi(self, main):
        main.setObjectName("main")
        main.resize(400, 300)
        self.label = QtWidgets.QLabel(main)
        self.label.setGeometry(QtCore.QRect(20, 20, 111, 41))
        self.label.setStyleSheet("font: 87 16pt \"Arial Black\";")
        self.label.setObjectName("label")
        self.pushButton_1 = QtWidgets.QPushButton(main)
        self.pushButton_1.setGeometry(QtCore.QRect(10, 10, 50, 31))
        self.pushButton_1.setStyleSheet("font: 87 14pt \"Arial Black\";")
        self.pushButton_1.setObjectName("pushButton")
        self.retranslateUi(main)
        QtCore.QMetaObject.connectSlotsByName(main)

    def retranslateUi(self, main):
        _translate = QtCore.QCoreApplication.translate
        main.setWindowTitle(_translate("main", "Form"))
        self.label.setText(_translate("main", "main"))
        self.pushButton_1.setText(_translate("main", "нажать"))

class Ui_window_1(object):
    def setupUi(self, window_1):
        window_1.setObjectName("window_1")
        window_1.resize(400, 300)
        self.label = QtWidgets.QLabel(window_1)
        self.label.setGeometry(QtCore.QRect(20, 20, 111, 41))
        self.label.setStyleSheet("font: 87 16pt \"Arial Black\";")
        self.label.setObjectName("label")

        self.retranslateUi(window_1)
        QtCore.QMetaObject.connectSlotsByName(window_1)

    def retranslateUi(self, window_1):
        _translate = QtCore.QCoreApplication.translate
        window_1.setWindowTitle(_translate("window_1", "Form"))
        self.label.setText(_translate("window_1", "window_1"))

class Win(QtWidgets.QWidget, Ui_window_1):
    def __init__(self, parent=None):
        super(Win, self).__init__(parent)

class Main(QtWidgets.QWidget, Ui_main):
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
    b = #определение открыто ли окно или нет
    if b == True:
        print("Окно открыто")
    else:
        print("Окно закрыто")
        self.setupUi(self)
        self.pushButton_1.clicked.connect(self.Win_f)
    def Win_f(self):
        self.wmain = Win()
        self.wmain.show()
if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv) 
    w = Main()
    w.show()

    sys.exit(app.exec_())

再次调用 och 函数时，报错：

    self.och()
    TypeError: 'Myoch' object is not callable

这是代码的一部分：

    def opr(self):
    path = File_location + "1_classes/" + self.lineEdit1.text() + '.txt'
    try:
        file = open(path)
    except IOError as e:
        self.och()
    else:
        self.uch()

och函数：

    def och(self):
        self.och = Myoch()
        self.och.show()  

我有一个程序：

import time

from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(1110, 671)
        self.la_non = QtWidgets.QLabel(Form)
        self.la_non.setGeometry(QtCore.QRect(10, 10, 1091, 71))
        self.la_non.setStyleSheet("font: 48pt \"Molot\";")
        self.la_non.setObjectName("la_non")
        self.label_lime = QtWidgets.QLabel(Form)
        self.label_lime.setGeometry(QtCore.QRect(20, 150, 1071, 491))
        self.label_lime.setStyleSheet("font: 55pt \"Molot\";")
        self.label_lime.setObjectName("label_lime")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.la_non.setText(_translate("Form", "1234"))



class Main(QtWidgets.QWidget, Ui_Form): 
    def __init__(self, parent=None):
        super(Main, self).__init__(parent) 

        self.setupUi(self)
    def time(self):

        import time
        time = str(time.strftime("%X"))
        hour, minute, second = time.split(':')
        self.label_lime.setText(str(23 - int(hour)) + " " + "часов" + " " + str(59 - int(minute)) + " " +"минут" + " " + str(60 - int(second)) + " " + "секунд")
if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)                        
    w = Main()
    w.show()
    sys.exit(app.exec_())

你需要循环函数时间。

如何确定文本超出范围的字符label？

从15字符开始，文本走出了窗口。

如何移动一条线？

例子：

а б в г д е е е д д  д  д  д  о  о  о  о  о  к  к  к  к 
1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 21 22 23 и т.д

如何在调整窗口大小时更改其中的小部件的大小。

class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(1000, 834)
        self.pushButton = QtWidgets.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(200, 510, 541, 121))
        self.pushButton.setObjectName("pushButton")
        self.lineEdit = QtWidgets.QLineEdit(Form)
        self.lineEdit.setGeometry(QtCore.QRect(230, 100, 481, 201))
        self.lineEdit.setObjectName("lineEdit")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.pushButton.setText(_translate("Form", "PushButton"))

class Main(QtWidgets.QWidget, Ui_Form): 
    def __init__(self, parent=None):
    super(Main, self).__init__(parent)        
    while True:
        width = "определение ширины"
        height = "определение высоты"

        x = width - 1000
        y = height - 834

        Form.resize(1000 + x, 834 + y)
        self.pushButton.setGeometry(541 + x, 121 + y)
        self.lineEdit.setGeometry(481 + x, 201 + y)

from selenium import webdriver
def main():
    driver = webdriver.Chrome()
    url = "https://vk.com/"
    driver.get(url)
    login = driver.find_element_by_name_name("email")
    login.clear()
    login.send_keys("123")
    pswd = driver.find_element_by_name_name('pass')
    pswd.send_keys("123")
    but_log = driver.find_element_by_class_name("index_login_button")
    but_log.click()
main()

代码抛出错误

      $ C:\py\piramida.py
  Traceback (most recent call last):
    File "C:\Users\Danila\AppData\Local\Programs\Python\Python37-32\lib\site-packages\selenium\webdriver\common\service.py", line 76, in start
      stdin=PIPE)
    File "C:\Users\Danila\AppData\Local\Programs\Python\Python37-32\lib\subprocess.py", line 775, in __init__
      restore_signals, start_new_session)
    File "C:\Users\Danila\AppData\Local\Programs\Python\Python37-32\lib\subprocess.py", line 1178, in _execute_child
      startupinfo)
  FileNotFoundError: [WinError 2] Не удается найти указанный файл

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "C:\py\piramida.py", line 13, in <module>
      main()
    File "C:\py\piramida.py", line 3, in main
      driver = webdriver.Chrome()
    File "C:\Users\Danila\AppData\Local\Programs\Python\Python37-32\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 73, in __init__
      self.service.start()
    File "C:\Users\Danila\AppData\Local\Programs\Python\Python37-32\lib\site-packages\selenium\webdriver\common\service.py", line 83, in start
      os.path.basename(self.path), self.start_error_message)
  selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home

如何确定CheckBox激活了什么？

比方说，如果它checkBox处于活动状态，则显示 1，如果它未处于活动状态，则显示 2。

怎么做？如果小部件上有“勾号”，我认为是活动的。

с = #определение состояния
if c == #есть "галочка":
   x = 5
elif c == #нет "галочки":
   x = 10
print(x)

#что-то не так
import subprocess
from PyQt5.QtWidgets import QApplication
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(959, 365)
        Form.setStyleSheet("")
        self.checkBox = QtWidgets.QCheckBox(Form)
        self.checkBox.setGeometry(QtCore.QRect(20, 230, 421, 41))
        self.checkBox.setObjectName("checkBox")
        self.label = QtWidgets.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(23, 30, 441, 41))
        self.label.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(Form)
        self.label_2.setGeometry(QtCore.QRect(494, 20, 421, 61))
        self.label_2.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label_2.setObjectName("label_2")
        self.lineEdit = QtWidgets.QLineEdit(Form)
        self.lineEdit.setGeometry(QtCore.QRect(20, 80, 421, 41))
        self.lineEdit.setObjectName("lineEdit")
        self.lineEdit_2 = QtWidgets.QLineEdit(Form)
        self.lineEdit_2.setGeometry(QtCore.QRect(490, 80, 431, 41))
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.label_3 = QtWidgets.QLabel(Form)
        self.label_3.setGeometry(QtCore.QRect(25, 164, 421, 21))
        self.label_3.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(Form)
        self.label_4.setGeometry(QtCore.QRect(493, 160, 421, 31))
        self.label_4.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label_4.setObjectName("label_4")
        self.lineEdit_3 = QtWidgets.QLineEdit(Form)
        self.lineEdit_3.setGeometry(QtCore.QRect(21, 190, 421, 41))
        self.lineEdit_3.setObjectName("lineEdit_3")
        self.lineEdit_4 = QtWidgets.QLineEdit(Form)
        self.lineEdit_4.setGeometry(QtCore.QRect(489, 190, 431, 41))
        self.lineEdit_4.setObjectName("lineEdit_4")
        self.pushButton = QtWidgets.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(20, 280, 901, 51))
        self.pushButton.setStyleSheet("font: 87 26pt \"Arial Black\";")
        self.pushButton.setObjectName("pushButton")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)
        self.checkBox.stateChanged.connect(
            lambda state=self.checkBox.isChecked(), no=1: self.selectBooks(state, no))

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.checkBox.setText(_translate("Form", "Использовать тот же путь"))
        self.label.setText(_translate("Form", "Введи путь до исходного файла"))
        self.label_2.setText(_translate("Form", "Введи название исходного файла"))
        self.label_3.setText(_translate("Form", "Введи путь до конечного файла"))
        self.label_4.setText(_translate("Form", "Введи название конечного файла"))
        self.pushButton.setText(_translate("Form", "Конвертировать"))




app = QApplication([])

class Main(QtWidgets.QWidget, Ui_Form): 
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.setupUi(self)
        file = str(self.lineEdit.text()) + "/" + str(self.lineEdit_2)
        def selectBooks(self, toggle, no):
            if toggle == QtCore.Qt.Checked:
                print('toggle=`{}`, checked_{}'.format(toggle, no))
                if no == 1:
                    print('checked_{} -> галочка поставлена выполнилось действие'.format(no))
            else:
                print('toggle=`{}`, unchecked_{}'.format(toggle, no))

mw = Main()
mw.show()


app.exec()

import subprocess

from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(959, 365)
        Form.setStyleSheet("")
        self.checkBox = QtWidgets.QCheckBox(Form)
        self.checkBox.setGeometry(QtCore.QRect(20, 230, 421, 41))
        self.checkBox.setObjectName("checkBox")
        self.label = QtWidgets.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(23, 30, 441, 41))
        self.label.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(Form)
        self.label_2.setGeometry(QtCore.QRect(494, 20, 421, 61))
        self.label_2.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label_2.setObjectName("label_2")
        self.lineEdit = QtWidgets.QLineEdit(Form)
        self.lineEdit.setGeometry(QtCore.QRect(20, 80, 421, 41))
        self.lineEdit.setObjectName("lineEdit")
        self.lineEdit_2 = QtWidgets.QLineEdit(Form)
        self.lineEdit_2.setGeometry(QtCore.QRect(490, 80, 431, 41))
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.label_3 = QtWidgets.QLabel(Form)
        self.label_3.setGeometry(QtCore.QRect(25, 164, 421, 21))
        self.label_3.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(Form)
        self.label_4.setGeometry(QtCore.QRect(493, 160, 421, 31))
        self.label_4.setStyleSheet("font: 87 12pt \"Arial Black\";")
        self.label_4.setObjectName("label_4")
        self.lineEdit_3 = QtWidgets.QLineEdit(Form)
        self.lineEdit_3.setGeometry(QtCore.QRect(21, 190, 421, 41))
        self.lineEdit_3.setObjectName("lineEdit_3")
        self.lineEdit_4 = QtWidgets.QLineEdit(Form)
        self.lineEdit_4.setGeometry(QtCore.QRect(489, 190, 431, 41))
        self.lineEdit_4.setObjectName("lineEdit_4")
        self.pushButton = QtWidgets.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(20, 280, 901, 51))
        self.pushButton.setStyleSheet("font: 87 26pt \"Arial Black\";")
        self.pushButton.setObjectName("pushButton")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.checkBox.setText(_translate("Form", "Использовать тот же путь"))
        self.label.setText(_translate("Form", "Введи путь до исходного файла"))
        self.label_2.setText(_translate("Form", "Введи название исходного файла"))
        self.label_3.setText(_translate("Form", "Введи путь до конечного файла"))
        self.label_4.setText(_translate("Form", "Введи название конечного файла"))
        self.pushButton.setText(_translate("Form", "Конвертировать"))

class Main(QtWidgets.QWidget, Ui_Form): 
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.setupUi(self)
        file = self.lineEdit.Text() + "/" + self.lineEdit_2
        x = self.checkBox.isChecked()

界面应该打开了，但是打不开，怎么办？

我尝试了两种方法：

一。

    f = path(file_location + '1_classes/' + self.lineEdit1.text() + '.txt')
    if f.is_file():
        self.uch()
        file.close()
    else:
        self.och()
        file.close()

2.

        try:
    file = open(file_location + "1_classes/" + self.lineEdit1.text() + '.txt')
    except IOError as e:
        self.och()
        file.close()
    else:
        self.uch()
        file.close()

两种方式都行不通。如有必要，我找到了文件的路径，如下所示：

file_location + '1_classes/' + self.lineEdit1.text() + '.txt'

路径形成正确，检查。
即使文件存在，代码也会打开一个报告错误的窗口。

我有一个程序，其中有三个窗口。我不明白如何只使用一个窗口（显示文本，使用按钮）。

这是代码：main.py

from PyQt5 import QtCore, QtGui, QtWidgets

from ui_inst import Ui_Inst
from ui_uch import Ui_Uch                           

class Ui_Start(object):
    def setupUi(self, Ui_Start):
        Ui_Start.setObjectName("Ui_Start")
        Ui_Start.resize(443, 293)

        self.lineEdit1 = QtWidgets.QLineEdit(Ui_Start)
        self.lineEdit1.setGeometry(QtCore.QRect(50, 80, 321, 51))
        self.lineEdit1.setStyleSheet("")
        self.lineEdit1.setText("")
        self.lineEdit1.setObjectName("lineEdit")
        self.textEdit = QtWidgets.QTextEdit(Ui_Start)
        self.textEdit.setGeometry(QtCore.QRect(10, 30, 421, 41))
        self.textEdit.setObjectName("textEdit")
        self.pushButton_2 = QtWidgets.QPushButton(Ui_Start)
        self.pushButton_2.setGeometry(QtCore.QRect(150, 210, 141, 58))
        self.pushButton_2.setStyleSheet("font: 16pt \"Molot\";")
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton = QtWidgets.QPushButton(Ui_Start)
        self.pushButton.setGeometry(QtCore.QRect(50, 140, 321, 58))
        self.pushButton.setStyleSheet("font: 20pt \"Molot\";")
        self.pushButton.setObjectName("pushButton")

        self.retranslateUi(Ui_Start)
        QtCore.QMetaObject.connectSlotsByName(Ui_Start)

    def retranslateUi(self, Ui_Start):
        _translate = QtCore.QCoreApplication.translate
        Ui_Start.setWindowTitle(_translate("Ui_Start", "Ui_Start"))
        self.textEdit.setHtml(_translate("Ui_Start", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
        "<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
        "p, li { white-space: pre-wrap; }\n"
        "</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8.25pt; font-weight:400; font-style:normal;\">\n"
        "<p align=\"center\" style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:16pt;\">Введите номер и букву класса:</span></p></body></html>"))
        self.pushButton_2.setText(_translate("Ui_Start", "инструкция"))
        self.pushButton.setText(_translate("Ui_Start", "Найти класс"))


class MyInst(QtWidgets.QWidget, Ui_Inst):
    def __init__(self, parent=None):
        super(MyInst, self).__init__(parent)
        self.setupUi(self)
class MyUch(QtWidgets.QWidget, Ui_Uch):
    def __init__(self, parent=None):
        super(MyUch, self).__init__(parent)
        self.setupUi(self)       


class Main(QtWidgets.QWidget, Ui_Start):
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.setupUi(self)

        self.pushButton_2.clicked.connect(self.onClicked)
        self.pushButton.clicked.connect(self.uch)

    def onClicked(self):
        self.inst = MyInst()
        self.inst.show()
    def uch(self):
        self.uch = MyUch()
        self.uch.show()
        self.lineEdit2.setText("1")

    



StyleSheet = '''
QPushButton {
    font: bold italic 16pt 'Comic Sans MS';
    background-color: silver;
    width: 75px ;
    height: 50px;
    border: none;
    text-align: center;
}
QPushButton:hover {
    background: #C9C0BB; 
}            
QPushButton:pressed {
    background-color: blue;
}

'''


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)

    app.setStyleSheet(StyleSheet)                          

    file = QtCore.QFile("dark.qss")                                
    file.open(QtCore.QFile.ReadOnly | QtCore.QFile.Text)
    stream = QtCore.QTextStream(file)
    app.setStyleSheet(stream.readAll())

    w = Main()
    w.show()

    sys.exit(app.exec_())

ui_inst.py：

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_Inst(object):
    def setupUi(self, Inst):
        Inst.setObjectName("Ui_Inst")
        Inst.resize(1111, 883)
        self.textEdit = QtWidgets.QTextEdit(Inst)                        
        self.textEdit.setGeometry(QtCore.QRect(0, 10, 1111, 41))
        self.textEdit.setObjectName("textEdit")
        self.text_inctru = QtWidgets.QTextEdit(Inst)
        self.text_inctru.setGeometry(QtCore.QRect(20, 60, 1071, 811))
        self.text_inctru.setObjectName("text_inctru")

        self.retranslateUi(Inst)
        QtCore.QMetaObject.connectSlotsByName(Inst)                      

    def retranslateUi(self, Inst):
        _translate = QtCore.QCoreApplication.translate
        Inst.setWindowTitle(_translate("Inst", "Inst"))
        self.textEdit.setHtml(_translate("Inst", "<!DOCTYPE HTML PUBLIC 
        \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC- 
        html40/strict.dtd\">\n"
        "<html><head><meta name=\"qrichtext\" content=\"1\" /><style 
        type=\"text/css\">\n"
        "p, li { white-space: pre-wrap; }\n"
        "</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font- 
        size:8.25pt; font-weight:400; font-style:normal;\">\n"
        "<p align=\"center\" style=\" margin-top:0px; margin-bottom:0px; 
        margin-left:0px; margin-right:0px; -qt-block-indent:0; text- 
        indent:0px;\"><span style=\" font-size:22pt;\">Инструкция</span></p> 
        </body></html>"))

ui_uch.py​​ ​​​：

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_Uch(object):
    def setupUi(self, Uch):
        Uch.setObjectName("Uch")
        Uch.resize(718, 336)
        self.lineEdit = QtWidgets.QLineEdit(Uch)
        self.lineEdit.setGeometry(QtCore.QRect(60, 40, 611, 81))
        self.lineEdit.setStyleSheet("font: 20pt \"Molot\";")
        self.lineEdit.setObjectName("lineEdit1")
        self.pushButton = QtWidgets.QPushButton(Uch)
        self.pushButton.setGeometry(QtCore.QRect(190, 140, 341, 51))
        self.pushButton.setStyleSheet("font: 27pt \"Molot\";")
        self.pushButton.setObjectName("pushButton")
        self.pushButton_2 = QtWidgets.QPushButton(Uch)
        self.pushButton_2.setGeometry(QtCore.QRect(60, 222, 601, 61))
        self.pushButton_2.setStyleSheet("font: 45pt \"Molot\";")
        self.pushButton_2.setObjectName("pushButton_2")
        self.label = QtWidgets.QLabel(Uch)
        self.label.setGeometry(QtCore.QRect(70, 0, 601, 41))
        self.label.setStyleSheet("font: 25pt \"Molot\";")
        self.label.setObjectName("label")

        self.retranslateUi(Uch)
        QtCore.QMetaObject.connectSlotsByName(Uch)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Uch", "Uch"))
        self.pushButton.setText(_translate("Uch", "Выбрать ученика"))
        self.pushButton_2.setText(_translate("Uch", "Задать вопрос"))
        self.label.setText(_translate("Uch", "Отвечает ученик:"))

我有两个窗户。

如何，当您单击窗口中的“指令”按钮时start，打开窗口inst？

开始（开始窗口）：

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_Start(object):
    def setupUi(self, Start):
        Start.setObjectName("Ui_Start")
        Start.resize(443, 293)
        Start.setStyleSheet("QPushButton:hover {backgroun-color: red}    \n"
"QPushButton:pressed {backgroun-color: blue\n"
"}\n"
"QPushButton{\n"
"    font: 45pt \"Molot\";\n"
"    backgroun-color: white;\n"
"    width: 75px ;\n"
"    height: 50px;\n"
"    font-size: 45px;\n"
"    font-weight: bold;\n"
"    bolder: none;\n"
"    text-align: center\n"
"}\n"
"\n"
"")
        self.lineEdit = QtWidgets.QLineEdit(Start)
        self.lineEdit.setGeometry(QtCore.QRect(50, 80, 321, 51))
        self.lineEdit.setStyleSheet("")
        self.lineEdit.setText("")
        self.lineEdit.setObjectName("lineEdit")
        self.textEdit = QtWidgets.QTextEdit(Start)
        self.textEdit.setGeometry(QtCore.QRect(10, 30, 421, 41))
        self.textEdit.setObjectName("textEdit")
        self.pushButton_2 = QtWidgets.QPushButton(Start)
        self.pushButton_2.setGeometry(QtCore.QRect(150, 210, 141, 58))
        self.pushButton_2.setStyleSheet("font: 16pt \"Molot\";")
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton = QtWidgets.QPushButton(Start)
        self.pushButton.setGeometry(QtCore.QRect(50, 140, 321, 58))
        self.pushButton.setObjectName("pushButton")

        self.retranslateUi(Start)
        QtCore.QMetaObject.connectSlotsByName(Start)

    def retranslateUi(self, v):
        _translate = QtCore.QCoreApplication.translate
        Start.setWindowTitle(_translate("Start", "Start"))
        self.textEdit.setHtml(_translate("Start", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8.25pt; font-weight:400; font-style:normal;\">\n"
"<p align=\"center\" style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:16pt;\">введите номер и букву класса класса :</span></p></body></html>"))
        self.pushButton_2.setText(_translate("Start", "инструкция"))
        self.pushButton.setText(_translate("Start", "1"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Start = QtWidgets.QWidget()
    ui = Ui_Start()
    ui.setupUi(Start)
    Start.show()
    sys.exit(app.exec_())

inst（指令）：

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_Inst(object):
    def setupUi(self, Inst):
        Inst.setObjectName("Ui_Inst")
        Inst.resize(1111, 883)
        self.textEdit = QtWidgets.QTextEdit(v)
        self.textEdit.setGeometry(QtCore.QRect(0, 10, 1111, 41))
        self.textEdit.setObjectName("textEdit")
        self.text_inctru = QtWidgets.QTextEdit(Inst)
        self.text_inctru.setGeometry(QtCore.QRect(20, 60, 1071, 811))
        self.text_inctru.setObjectName("text_inctru")

        self.retranslateUi(Inst)
        QtCore.QMetaObject.connectSlotsByName(v)

    def retranslateUi(self, Inst):
        _translate = QtCore.QCoreApplication.translate
        Inst.setWindowTitle(_translate("Inst", "Inst"))
        self.textEdit.setHtml(_translate("Inst", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8.25pt; font-weight:400; font-style:normal;\">\n"
"<p align=\"center\" style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:22pt;\">Инструкция</span></p></body></html>"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Inst = QtWidgets.QWidget()
    ui = Ui_Inst()
    ui.setupUi(Inst)
    Inst.show()
    sys.exit(app.exec_())

如何打开第二个窗口？

from PySide import QtCore, QtGui
import sys
from ui import Ui_Start
import time

app = QtGui.QApplication(sys.argv)


Start = QtGui.QWidget()
ui = Ui_Start()
ui.setupUi(Start)
Start.show()
def but_1():
   from ui import Ui_inst
   app = QtGui.QApplication(sys.argv)

   inst = QtGui.QWidget()
   ui_ins = Ui_inst()
   ui_ins.setupUi(inst)
   inst.show()
   ui_ins.textEdit.setText("12546")

   sys.exit(app.exec_())

   ui.pushButton_2.clicked.connect( but_1 )     

   sys.exit(app.exec_())

有一个代码：

from PySide import QtCore, QtGui
import sys
from ui import Ui_Form
import time
app = QtGui.QApplication(sys.argv)


Form = QtGui.QWidget()
ui = Ui_Form()
ui.setupUi(Form)
Form.show()
t = ""
#   функции
def but1():
    ui.lineEdit.setText(ui.lineEdit.text() + "1")
def but2():
    ui.lineEdit.setText(ui.lineEdit.text() + "2")   
def but3():
    ui.lineEdit.setText(ui.lineEdit.text() + "3")
def but4():
    ui.lineEdit.setText(ui.lineEdit.text() + "4")
def but5():
    ui.lineEdit.setText(ui.lineEdit.text() + "5")
def but6():
    ui.lineEdit.setText(ui.lineEdit.text() + "6")
def but7():
    ui.lineEdit.setText(ui.lineEdit.text() + "7")
def but8():
    ui.lineEdit.setText(ui.lineEdit.text() + "8")
def but9():
    ui.lineEdit.setText(ui.lineEdit.text() + "9")
def but_pl():
    ui.lineEdit.text() t
    ui.lineEdit.setText("")
    time.sleep(0.4)
    ui.lineEdit.setText(t)

    
#   кнопки
ui.but1.clicked.connect( but1 )
ui.but2.clicked.connect( but2 )
ui.but3.clicked.connect( but3 )
ui.but4.clicked.connect( but4 )
ui.but5.clicked.connect( but5 )
ui.but6.clicked.connect( but6 )
ui.but7.clicked.connect( but7 )
ui.but8.clicked.connect( but8 )
ui.but9.clicked.connect( but9 ) 
ui.but_pl.clicked.connect( but_pl )

#   основной код                        

sys.exit(app.exec_())

现在让我们关注函数def but_pl()。
需要将\u200b\u200bof的值lineEdit写入变量，然后lineEdit清零。在这种情况下，我将变量中的值输出回lineEdit.
告诉我如何实现它？