python-3.x - PyQt5 从 pyuic5 转换文件或 uic.loadUi 调用 gui
问题描述
嗨,我是 python 新手(直到 MIT 6001 计算机科学和 Python 编程简介的第 2 课和一半),但我开始使用 Gtk & Glade 和 PyQt5 和 Designer。
在https://stackoverflow.com/a/54081597/9877065之后 ,我使用 pyuic5 转换了我的 prova.ui,Designer 生成的窗口并在下面的代码中导入:
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from prova1 import Ui_MainWindow
class MyWindow(QMainWindow):
def __init__(self):
super().__init__()
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.ButtonQ.clicked.connect(self.QPushButtonQPressed)
self.ButtonA.clicked.connect(self.QPushButtonAPressed)
def QPushButtonQPressed(self):
# This is executed when the button is pressed
print('pppppppp exit from QQQQQQQQQQQQQQQQQQQQQQQQQQQQQ')
sys.exit()
def QPushButtonAPressed(self):
# This is executed when the button is pressed
print('exit from AAAAAAAAAAAAAAAAAAAAAAA')
sys.exit()
if __name__ == '__main__':
app = QApplication(sys.argv)
w = MyWindow()
w.show()
sys.exit(app.exec_())
但是当我在终端中运行它时,我得到了:
File "./main.py", line 80, in <module>
w = MyWindow()
File "./main.py", line 38, in __init__
self.ButtonQ.clicked.connect(self.QPushButtonQPressed)
AttributeError: 'MyWindow' object has no attribute 'ButtonQ'
错误 !!!!
在使用 loaduic 时:
import sys
from PyQt5 import QtWidgets, uic
class Ui(QtWidgets.QMainWindow):
def __init__(self):
super(Ui, self).__init__()
uic.loadUi('prova1.ui', self)
self.ButtonQ.clicked.connect(self.QPushButtonQPressed)
self.ButtonA.clicked.connect(self.QPushButtonAPressed)
self.show()
def QPushButtonQPressed(self):
# This is executed when the button is pressed
print('pppppppp exit from QQQQQQQQQQQQQQQQQQQQQQQQQQQQQ')
sys.exit()
def QPushButtonAPressed(self):
# This is executed when the button is pressed
print('exit from AAAAAAAAAAAAAAAAAAAAAAA')
sys.exit()
app = QtWidgets.QApplication(sys.argv)
window = Ui()
app.exec_()
程序按预期工作,即显示窗口 gui 并在按下 A 或 Quit 按钮时退出
根据使用 pyuic5 转换的 prova1.ui 文件,prova1.py:
# Form implementation generated from reading ui file 'prova1.ui'
#
# Created by: PyQt5 UI code generator 5.12.3
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(256, 351)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setEnabled(True)
self.centralwidget.setObjectName("centralwidget")
self.gridLayoutWidget = QtWidgets.QWidget(self.centralwidget)
self.gridLayoutWidget.setGeometry(QtCore.QRect(10, 0, 221, 261))
self.gridLayoutWidget.setObjectName("gridLayoutWidget")
self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.ButtonA = QtWidgets.QPushButton(self.gridLayoutWidget)
font = QtGui.QFont()
font.setFamily("Abyssinica SIL")
font.setItalic(True)
font.setUnderline(True)
font.setStrikeOut(False)
font.setKerning(False)
self.ButtonA.setFont(font)
self.ButtonA.setCheckable(True)
self.ButtonA.setAutoDefault(False)
self.ButtonA.setDefault(False)
self.ButtonA.setObjectName("ButtonA")
self.gridLayout.addWidget(self.ButtonA, 0, 0, 1, 1)
self.C = QtWidgets.QPushButton(self.gridLayoutWidget)
self.C.setObjectName("C")
self.gridLayout.addWidget(self.C, 2, 0, 1, 1)
self.B = QtWidgets.QPushButton(self.gridLayoutWidget)
self.B.setObjectName("B")
self.gridLayout.addWidget(self.B, 1, 0, 1, 1)
self.ButtonQ = QtWidgets.QPushButton(self.gridLayoutWidget)
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.ButtonQ.setFont(font)
self.ButtonQ.setCheckable(True)
self.ButtonQ.setAutoDefault(False)
self.ButtonQ.setDefault(False)
self.ButtonQ.setObjectName("ButtonQ")
self.gridLayout.addWidget(self.ButtonQ, 3, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 256, 29))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.statusbar.setFont(font)
self.statusbar.setAutoFillBackground(True)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.ButtonA.setText(_translate("MainWindow", "A"))
self.C.setText(_translate("MainWindow", "C"))
self.B.setText(_translate("MainWindow", "B"))
self.ButtonQ.setText(_translate("MainWindow", "Q quit"))
我确定错误与类定义有某种关系,但不能真正掌握它?有什么帮助吗?
解决方案
海克解决了
在 MyWindow 的第一个版本中,ButtonA 和 ButtonQ 是 self.ui 的属性,而不是 self 本身的属性,因此您需要使用 self.ui.ButtonA.clicked.connect(...) 之类的东西。
推荐阅读
- javascript - 使用 ES6 语法定义类方法属性
- php - 发布请求返回 false 但在 PHP 中的 phpmyadmin 中返回 true
- java - saveAndFlush() 不保存到模拟仓库
- arrays - 从原始数据集中删除目标和预测的简单方法
- java - 如何从一开始就读取来自 azure bus 主题的所有消息
- spring - 使用 restTemplate 来自 REST API 的空响应值
- python - 这个 Django 模板标签的预期操作顺序是否有条件正确?
- python - Beautiful Soup 错误【违规】避免使用 document.write()
- javascript - 进入下一步或上一步后插入的数据消失
- vuejs2 - 如何在加载时从数据库中预选“sw-entity-multi-select”组件值